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1

Mawson, Suzanne. "High growth firms in Scotland : customer perceived value creation and rapid firm growth." Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=20998.

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The past twenty years have seen an increasing level of importance attached to rapidly growing "high growth firms" (HGFs) within the academic and policy-making communities. However, despite decades of research, our knowledge about how these firms achieve such strong performance remains limited. The literature is dominated by studies seeking to correlate firm characteristics with growth, rather than attempting to explore the nature of rapid firm growth itself. This thesis contributes to the high growth firm literature by exploring the process of rapid firm turnover growth, specifically at the impact that customer perceived value has on firm performance. Drawing on data collected from a large scale questionnaire and Critical Incident Technique interviews, this thesis presents a number of important findings. It identifies the important role played by critical events or key "trigger points" in firm growth and provides a conceptualisation of this firm growth process. This process emphasises that the manner in which a trigger is sensed, seized and managed is of greater significance than the trigger itself. Competencies such as a propensity for risk-taking, a focus on strategic planning and operational flexibility are identified to be of particular importance to successfully capitalise on critical trigger points. This thesis also explores at length firm-level competencies and firm-customer interactions that help to facilitate customer perceived value creation. At the firm-level, the data demonstrates that high growth firms exhibit strongly customer-centric ideologies, significant operational flexibility and a propensity for learning. At the firm-customer interaction level, high growth firms demonstrate significant competencies, such as engaging deeply with customers and participating in co-creation activities. These competencies allow HGFs to have a significant influence on customer perceived value creation, which in turn has a positive effect on firm performance through higher repeat purchases and referrals. These competencies differentiate HGFs from their more moderately-performing counterparts.
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2

Mogos, Serban Ioan. "High Growth Entrepreneurship: A Multi-Level Perspective on Firm Growth and Growth Policy." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/1106.

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Entrepreneurship is the force that drives economic, social and technical progress. A small percentage of firms (5%) is responsible for a disproportionately large amount of net job creation (>50%). Named high growth firms, these successful enterprises have been in the spotlight of research looking into the key drivers of firm growth and growth policy. This dissertation explores high growth from multiple perspectives: at the level of the firm, by understanding how the definition of a high growth firm impacts its characteristics and expected performance over time; at the local level, by isolating the effect of political connections of firm performance and firm entry; and at the macro level, by observing the evolution of entrepreneurship during transition. The first study finds that most HGFs are unable to maintain high growth rates for long, but do register lower volatility in growth rates and a higher chance of survival. Results on growth volatility and persistence vary significantly with the specific definition of “high growth” used as well as with the specific variable used to measure growth (e.g., revenue, employees, profit, productivity). These findings have direct implications for growth policies and programs that depend on identifying HGFs. The second study indicates a strong significant effect of political alignment on revenue growth and firm entry. Larger firms take advantage of political connections for performance gains, while small firms are negatively impacted. Furthermore, alignment reduces entry into entrepreneurship by 8-11%. These findings establish political alignment and local-level business-politics collusion as important dynamics to consider when evaluating entrepreneurship policy in developing countries. The third study describes the interdependence between entrepreneurship, institutions, and transitions. The case of Romania shows that the beginning of transition was characterized by an initial explosion of newly created private enterprises, followed by a declining trend in enterprise creation and, recently, by a new increase in entrepreneurship activity. To conclude, this work contributes new perspectives towards a better understanding of high growth firms and growth policy. Policy implications are targeted towards transition and developing economies that have seen little representation in literature. The goal is to enable successful high growth policies across multiple levels.
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Halvarsson, Daniel. "Firm Dynamics : The Size and Growth Distribution of Firms." Doctoral thesis, KTH, Samhällsekonomi (Stängd 20130101), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118333.

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This thesis is about firm dynamics, and relates to the size and growth-rate distribution of firms. As such, it consists of an introductory and four separate chapters. The first chapter concerns the size distribution of firms, the two subsequent chapters deal more specically with high-growth firms (HGFs), and the last chapter covers a related topic in distributional estimation theory. The first three chapters are empirically oriented, whereas the fourth chapter develops a statistical concept.

QC 20130215

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4

Ragea, Mihnea-Andrei, and Levi Bill Farrand. "Growth through acquisition in the context of small high-growth firms." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-451059.

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Acquisitions are a powerful tool to achieve growth, enter new markets, and expand capabilities. Yet research into the decision to acquire, and its implementation process, has predominantly focused on large established firms. Little is known about what a small high-growth firm requires to pursue an acquisition, what is it looking for in a target firm and when is acquisitive growth first expected to occur. The firms were not older than five years, and at a company stage at, or earlier than, series A funding round. The investigation revealed that small high-growth firms require organizational strategies, available resources and organizational systems. These types of firms are looking for targets that can provide knowledge, human resources and customer bases.  The earliest moment a small high-growth firm expects to acquire a target is in the seed round, only if the target has a low price and could bring a lot of value, otherwise the series A funding stage is when an acquisition will most likely take place. This observation opens the door to new ideas regarding how such firms may try to behave like large firms, yet are restricted in their capacity, due to a conscious lack of resources to do so.
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5

Rebmann, Anna. "Essays on entrepreneurship, high growth firms and institutions." Thesis, University College London (University of London), 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678836.

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Mohr, Vivian Mikal. "High-growth firms in a high-tech cluster : the case of Cambridge, U.K." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609899.

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7

Deus, Gonçalo Alexandre Pombinho de. "High-growth firms and their profile characteristics : evidence from Portugal." Master's thesis, Instituto Superior de Economia e Gestão, 2016. http://hdl.handle.net/10400.5/13185.

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Mestrado em Finanças
O presente trabalho pretende estudar a persistência das empresas de alto crescimento e as suas características, através da recolha de todas as empresas portuguesas presentes na base de dados Amadeus, durante um período de dez anos, dividimos o conceito de empresas de elevado crescimento em empresas de elevado crescimento de volume de negócios e empresas de elevado crescimento de empregados, para responder à pergunta se as empresas assim classificadas num determinado período do tempo, seriam capazes de manter taxas de crescimento elevado para vários períodos e se as suas características permaneceriam estáveis ao longo do tempo. O período de análise foi dividido em sete subperíodos. Notou-se que, a maioria das empresas que foram classificadas como de empresas de alto crescimento no primeiro período não foram capazes de manter este estatuto no período seguinte.
The purpose of this work is to analyze the growth persistence of high-growth firms and their profile characteristics, by collecting data of all the Portuguese firms present on Amadeus database for a ten-year period (i.e. from 2006 to 2015), We divided the high-growth concept in two versions ("employment high-growth firms" and "turnover high-growth firms") to answer the question if firms that were qualified as high-growth firm in a certain period of time, would be able to maintain the high growth rates for multiple periods and whether their profile characteristics would remain stable over time. The analysis period was divided into seven sub-periods. It was noted that most companies that were classified as of high growth firms in the first period were not able to maintain this level in the following period.
info:eu-repo/semantics/publishedVersion
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8

Elert, Niklas. "Economic dynamism : essays on firm entry and firm growth." Doctoral thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-34804.

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The topic of this thesis is economic dynamism. The five articles contribute to the literature on firm entry and firm growth. Studies are based on a dataset covering all Swedish limited liability firms between 1997 and 2010. The first article investigates conditions for firm entry in Sweden, distinguishing regular entrants from entrants that survive for at least two years, modelling the firm entry decision using count data models. While high income and a well-educated population had a positive effect, the effect was more important for surviving entrants. The second article uses a similar method, but focuses on wholesale industries and distinguishes between regular entry and in migration of firms, i.e. when an incumbent firm relocates its operations. Access to a university, many educated workers and low local taxes had positive effects. Better access to infrastructure had a strong positive effect on entrants, but it was smaller for in-migrating firms. The third article investigates if the industry context matters for whether Gibrat’s law holds, i.e. whether firm growth is independent of firm size. The law is found more likely to be rejected in industries with a high minimum efficient scale and a large number of firms located in metropolitan areas, but more likely to hold in industries with high market concentration and more group ownership. The fourth and fifth article contribute to the high-growth firms (HGFs) literature. In the fourth article it is examined whether the way HGFs are defined matters for the policy implications. It is found that the economic contributions of HGFs differ significantly depending on definition. Young firms are however more likely to be HGFs irrespective of definition. The fifth article considers the frequent argument that policymakers should target high-tech firms, i.e., firms with high R&D intensity, because such firms are thought more likely to become HGFs. We examine this assumption by studying the industry distribution of HGFs. Results indicate that industries with high R&D intensity, ceteris paribus, can be expected to have a lower share of HGFs than can industries with lower R&D intensity. By contrast, we find that HGFs are overrepresented in service industries with a high share of human capital.
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9

Ali, S. (Sara). "The internal features of high-growth firms in Finland." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201906052415.

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Abstract. It is evident that high-growth firms are getting attention from the researchers. But there is still a gap in defining high-growth firms as there is scattered data available for defining high-growth firms with respect to its characteristics. The purpose of this study is to find out the inner qualities of high growth firms that differentiate them from other firms due to which, it is called high-growth firms. Previous researches have mainly focused on high-growth firms with respect to job creation only. Also, researches have emphasized on the firm-specific features of high-growth firms such as size, age, and industry. As high growth firms play an important role to support economic growth and raise the employment level in the country so it is very important to further research on it due to which it stands out as compared to other companies in the entrepreneurial ecosystem. This research is a qualitative study. Data is gathered by semi-structured interviews. All the interviewees were personnel from Finnish high-growth firms and had several years of experience in their field. In this study, internal characteristics are highlight based on the contemporary literature such as the growth vision: the identified opportunities or needs: the strategic management, partnerships or the inter-organizational relations,innovation and R&D, capabilities, entrepreneurial teams: entrepreneur characteristics, and human resource management practices: human capital. From the finding of the research Finnish high-growth firms in the metropolitan area have similar internal features which help the firms to grow. Moreover, there are some features which are also positively correlated such as 1) entrepreneurial teams and entrepreneur characteristics, 2) entrepreneurial teams, human capital, and Strategic management, 3) human resource management practices and human capital, and 4) partnerships or inter-organizational relations, capabilities and identified opportunities. Hence, it is empirically proven that High-growth firms possess these characteristics and some are positively correlated to each other. Further, the findings of the study are similar to the extant literature. The limitations and future studies are also discussed.
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10

Hedman, Filip. "The Relationship Between Venture Capital and High Growth Firms." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264190.

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The aim of this study is to investigate the relation between venture capital and the number of high growth firms. Previous research has covered the relation at the firmlevel where the positive effect of venture capital on innovation, firm growth and economic growth has been established. However, the research field have been lacking a more aggregated approach. With a fixed effects panel regression with the number of high growth firms as the dependent variable and the amount of venture capital as the key independent variable, this study is conducted at the country-level with a panel of 20 countries. The study yield no significant results except the positive effect of GDP per capita. The conclusion is that the data available today is not ready for this level of aggregation as it captures to much noise with regards to other factors affecting firm growth in a country. Growth in employment might also be an outdated proxy to measure firm growth as today's modern firms are not as dependent on a large number of employees to scale as in the past.
Målet med denna studie är att undersöka relationen mellan riskkapital och snabbväxande företag. Tidigare studier har undersökt relationen på företagsnivå där riskkapitalets positiva effekt på innovation, firmatillväxt och ekonomisk tillväxt har påvisats. Dock har forskningsfältet saknat ett tillvägagångssätt på en mer aggregerad nivå. Med en fixed effects-modell applicerad på paneldata med en beroende variabel bestående av antalet snabbväxande företag och en oberoende variabel bestående av mängden riskkapital, undersöks relationen på landnivå med ett urval av 20 länder. Studien visar inga signifikanta resultat bortsätt från kontrollvariabeln BNP per capita som är positiv och signifikant. Slutsatsen i arbetet är att den data som finns tillgänglig idag inte är mogen för studier på en aggregerad landnivå då brus i form av andra faktorer som påverkar snabbväxande företag i ett land fångas upp. Företagstillväxt mätt i tillväxt i antalet anställda i ett företag kan även vara en föråldrad metod. Dagens moderna företag präglade av affärsmodeller som inte kväver arbetskraft för att skala upp verksamheten på samma sätt som företag traditionellt gjort historiskt.
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Ng, Poh Yen. "Characterising High Growth Firms: Perspectives from the Asia-Pacific Region." Thesis, University of Canterbury. Department of Management, 2013. http://hdl.handle.net/10092/7799.

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This study advances understanding of the complexity of high growth in technology-based businesses. The study builds on conceptual and applied insights on business growth from the entrepreneurship and strategic management literatures. This thesis uses both qualitative and quantitative methods to develop and then test a model of the performance of high-growth firms. The qualitative study involved case studies of high-growth firms in Malaysia and New Zealand and led to a conceptual model of their performance. This model was then estimated using original data gathered from a questionnaire survey of a cross-section of high-growth and non-high-growth firms. The model was estimated separately on samples of high-growth and non-high-growth firms and, as expected, it proved a much stronger explanation of the performance of the high-growth sample. Hence the thesis provides important new insights into this small but important group of firms. Sixteen high-growth firms, selected in equal number from Malaysia and New Zealand, agreed to be case studies in the initial phase of the research. Interviews with the CEO/owners and other evidence from these firms led to a conceptual framework of their high-growth experience. This framework highlighted the importance of supportive government policies; internal human resources; external relationships/networks; and the ability of management to dynamically manipulate these resources. Further, the high-growth strategies: product innovation, market expansion, remaining-in-private-ownership and strategy flexibility were underpinned by five main capabilities: innovation, financial, human, marketing and organisational. Challenges from both internal and external environments also influenced growth performance. This conceptual framework was the source of a number of hypotheses that were then tested using a statistically valid sample of firms. A survey was conducted on technology-based firms in the two countries. A total of 163 responses were collected from key decision makers in these firms. The empirical results showed different impacts of the dimensions mentioned in performance in the two countries. Due to limited responses in Malaysia (n=53), conclusions could only be made based on the New Zealand context (n=110). Product innovation was found to be a major strategy for ix all technology-based firms regardless of their performance. However, the results suggest that growth challenges have greater influence on high-growth firms than on firms with lower growth. The model has significantly higher statistical power when applied to a sample of high-growth firms, confirming differences between the two groups. This thesis has significant theoretical and practical implications. From a theoretical viewpoint, this study provides detailed evaluation on the growth determinants from a process perspective. All the resources identified in the qualitative study influenced some of the capabilities, and the innovation, marketing and human capabilities each had significant relationships with the growth strategies implemented. The performance of technology-based firms was influenced by three major strategies: market expansion, product innovation and remaining-in-private-ownership, and also by two growth challenges: financial barriers and external environment effects. The results also indicate that success of the market expansion strategy is tied to product innovation strategy, while remaining-in-private-ownership is positively related to performance. As such, technology-based firms should give priority to product innovation strategy in pursuing better performance. From a practical viewpoint, these findings indicate that the competitiveness of technology-based firms can be enhanced by working closely with key stakeholders who provide growth resources, and developing critical capabilities to assist the right strategies for better performance.
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Tuomaranta, J. (Jöns). "Resource allocation of high-growth firms in scale-up phase." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201906052436.

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Abstract. High-growth firms are important for economic growth and employment points of view, which have been recognized by multiple studies. The purpose of this research is to gain new knowledge of the resource allocation of high-growth firms in general and especially during their scale-up phase. The specific interest of this research is how functional resources, research & development (R&D) and marketing & sales, are allocated within Finnish high-growth firms. The world-level reference for the marketing & sales and R&D investment levels are US high-growth firms. Therefore, US high-growth firms, prior to their initial public offering, are used as a reference to compare resource allocation during the scale-up phase. The previous growth literature inclined to bundle all small and medium-sized enterprises (SMEs) together and to also make conclusions based on caracterisation of their different growth factors. Firms internal activities during the high-growth period has received less attention on the previous growth literature. The focus on Finnish studies has been on employment impact of high-growth firms. The high-growth firms resource allocation in scale-up phase is a scarcely studied research topic. The marketing & sales expenses are not itemized within the commonly used profit and loss statement, i.e. layout of the profit and loss account by nature of expenses, by the firms in Finland. The exact comparison between US and Finnish firms’ financial statements is currently not possible, since the Finnish SMEs do not report their marketing & sales expenses. Hence the firms’ marketing & sales expense data is not publicly available, the topic has been investigated by conducting a web-based survey within Finnish high-growth firms’ top management and board members. As a result, the approach of a quantitative research method was chosen for this study. This research contributes on the scarcely populated field of high-growth firms’ resource allocation studies. Firstly, for the firms, which are currently in the scale-up phase, there is clear contradictions between budgeted resource allocation and what the allocation should be based on the survey respondents’ opinion. The emphasis of resource allocation is still within R&D while it would need to be focused more to the marketing & sales, based on the results. Secondly, the assumption or expectation that most of the management and board members in Finnish high-growth firms seem to have regarding the required resourcing in the marketing & sales in the scale-up phase is inadequate, when compared to the US references. Thirdly, the board members would invest more to the marketing & sales during the scale-up phase than the operative management. The operative management would in average keep the R&D resourcing higher than marketing & sales in the scale-up phase. Additionally, venture capital and banks are in average almost as important a source for high-growth firms’ financing as founders are. The contributions of the study can be used to guide high-growth firms’ managerial attention toward importance of resource allocation decisions. Moreover, policymakers and public actors can use the contributions when they are assessing firms receiving public funding to evaluate if there is adequate balance between R&D and marketing & sales investments.
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Piazza, Merissa C. "CATCHING THE GAZELLE: ANTECEDENTS AND OUTCOMES OF HIGH GROWTH FIRMS." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1533825537146113.

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14

Bååth, Staffan, and Ludwig Wallin. "Dynamic Strategy in High Growth Firms : The importance and implication of dynamic strategy development in phases of high growth." Thesis, Linnéuniversitetet, Institutionen för marknadsföring (MF), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35168.

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Purpose – The presented research aims to explain, describe and analyze the process of dynamic strategy development in high growth firms. Accordingly the research seeks to investigate how dynamic strategies are used within high growth firms and how strategic learning affects the process. Design/methodology/approach – The authors presents a review of theoretically relevant studies of high growth related to strategy, and two original studies examining the impact of dynamic strategy on high growth. A theoretical framework for the study of dynamic strategy processes is developed. The study comprehends eight interviews divided over five high growth firms, where high growth is defined by the OECD (2008) standard. Findings – In the study, the researchers finds significant evidence for the active and deliberate use of dynamic strategy in the high growth firms of the study. The implication of strategic learning on the dynamic strategies is found to be substantial. The findings shows that dynamic strategy development are used to a large extent and considered vital for achieving growth within in the high growth firms of the study. Research/theoretical implications/limitations – The findings demonstrate that dynamic strategy development is actively used in high growth phases of the firms studied. This has implications on the extension of previous research, as it shows the actual use of dynamic strategy and further emphasizes the importance of strategic learning within this process. With the important limitation that the study is considered too small to generalize over a larger population, which implies that further research on the subject is needed. Managerial implications – The findings provide guidelines for managers of how to handle strategy development in high growth, however due to the previous limitation this is presented as the way the high growth firms within this study handles this development. The guidelines could be used by anyone in managerial positions, thus increasing the understanding of how high growth firms handle strategy.
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Lidström, Adam, and Linus Nordin. "Outgrowing the Disruptions : Exploring Supply Chain Resilience in High-growth Firms." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300384.

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In an ever-more complex and unstable global environment, the threats of supply chain disruptions are increasing. Furthermore high-growth firms, which are main contributors to the global economy, have no specific guidance as it pertains to this issue, while academics perceive a gap in knowledge with respect to these types of firms. Scholars have previously highlighted the importance of supply chain resilience for firms to withstand disruptions but have thus far only assumed the perspectives of industries or incumbent firms. Thus, the purpose of this thesis was to explore the role of organizational characteristics of a high-growth firm and how these affect supply chain resilience and its antecedents. Empirical findings propose that a high-growth firm can achieve sufficient resilience without high risk management orientation. Hence, the characteristics of a high-growth firm may inherently increase resilience. Further, it is proposed that the antecedents relating to supply chain resilience do not carry equal importance throughout an organization’s lifecycle. Hence, high-growth organizations need to apply resilience targets and actions that are in line with the overall growth roadmap of the firm, while considering the dynamic nature of their own growth.
I en alltmer komplex och instabil global miljö ökar hoten om störningar i försörjningskedjan. Dessutom har högväxtföretag, som är bland de viktigaste bidragande faktorerna till den globala ekonomin, ingen specifik vägledning vad gäller denna fråga, medan akademiker upplever en kunskapslucka med avseende på dessa typer av företag. Forskare har tidigare betonat vikten av motståndskraft i försörjningskedjan för att företagen ska kunna motstå störningar och katastrofer, men har hittills bara antagit perspektiven hos industrier eller etablerade företag. Syftet med denna avhandling var således att utforska rollen som organisatoriska egenskaper i ett företag med hög tillväxt spelar och hur dessa påverkar leveranskedjans motståndskraft och dess konceptuella komponenter. Empiriska resultat föreslår att ett företag med hög tillväxt kan uppnå tillräcklig motståndskraft utan etablerad riskhantering. Därför kan egenskaperna hos ett företag med hög tillväxt i sig öka motståndskraften. Vidare föreslås att de konceptuella komponenterna som avgör leveranskedjans motståndskraft inte har lika betydelse under hela organisationens livscykel. Därför måste organisationer med hög tillväxt tillämpa motståndsmål och åtgärder som är i linje med företagets övergripande tillväxtplan, samtidigt som de tar hänsyn till den dynamiska karaktären av deras egen tillväxt.
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Bjuggren, Carl Magnus. "Family Matters : Essays on Family Firms and Employment Protection." Doctoral thesis, Linköpings universitet, Nationalekonomi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-100156.

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This thesis is a study of firm dynamics, family ownership, and employment protection. It addresses the implications of employment protection on firm productivity and how family owned firms react differently with regard to economic shocks. It also investigates whether family ownership matters for the probability of exhibiting high growth. By using a novel data identification strategy, family ownership is identified in full population register data. The thesis also highlights some important caveats in the official statistics on self-employment.
Denna avhandling behandlar företagsdynamik, familjeägande och anställningsskydd. I avhandlingen analyseras anställningsskyddet och hur det påverkar företagens produktivitet, samt hur familjeägda företag reagerar på chocker inom industrin. I avhandlingen analyseras också hur familjeägande påverkar sannolikheten för ett företag att uppnå en hög tillväxttakt. Genom att kombinera olika statistikkällor kan samtliga familjeföretag i den den svenska företagspopulationen identifieras. Avhandlingen belyser också några av de problem som finns i den officiella statistiken över egenföretagare.
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Taye, Brook. "Visiting the contribution of high-growth entrepreneurial firms (hgefs) to new employment : the case of Ethiopia." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX007.

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Les entreprises à forte croissance représentent une part disproportionnée de la création d'emplois dans la plupart des économies. Cela a conduit à l'émergence d'un programme diversifié qui examine ces entreprises pour déterminer leurs caractéristiques et le moteur de leur taux de croissance supérieur. En particulier, il existe une littérature abondante qui se concentre sur les pays développés avec une grande partie de la recherche orientée vers la recommandation de changements de politique publique favorisant la croissance. Dans le contexte des pays en développement, peu ou pas d'attention a été accordée aux entreprises à forte croissance. Par conséquent, le but de cette recherche est d'étudier les entreprises à forte croissance sur le marché éthiopien qui a enregistré un taux de croissance économique sans précédent au cours des 10 dernières années.Dans ce cadre, les différents chapitres de cette recherche sont consacrés à la transformation de la définition d'une entreprise à forte croissance en accordant l'attention nécessaire au phénomène engendrant la croissance dans une perspective entrepreneuriale, axé sur le rôle de l'entrepreneur et l'entrepreneuriat, considérés comme les catalyseurs de croissance. A cet effet, la recherche formule une définition de HGEF en s’appuyant sur un cadre théorique qui expose la stratégie de croissance et le processus des entreprises dans le but de mettre l'accent sur le rôle de l'entrepreneur et de l'entrepreneuriat à inciter un taux de croissance supérieur.La recherche accorde une attention particulière sur les obstacles dans l’environnement des entreprises qui peuvent freiner les HGEFs en Ethiopie en étudiant les impacts de l'infrastructure, des services publics, des capacités, de la charge administrative et des procédures, des finances et de la corruption sur les opérations du HGEF conjointement avec la recherche de leur niveau d’incidence.Pour tester la contribution du HGEF éthiopien à la création de nouveaux emplois, les deux méthodes quantitative et qualitative sont appliquées sous le format de recherche « Convergent Parallel Mixed Methods Design ». La première phase de l'enquête utilisera les données de la Banque mondiale sur 848 entreprises éthiopiennes pour mesurer le niveau d'incidence et l'analyse d’impact de l’environnement des entreprises. Dans la deuxième phase, le résultat du travail sur le terrain qui a recueilli des données par le biais d’entretien avec 9 HGEF pour vérifier et tester les constats préliminaires sera utilisé pour apporter de nouveaux éclairages à la question.Les conclusions de la recherche illustrent des résultats contre-intuitifs qui montrent que le potentiel de développement des HGEF par la création de nouveaux emplois réside dans les secteurs traditionnels de l'économie avec une présence minimale dans les secteurs qui nécessitent des investissements élevés en capital et technique. De plus, le niveau d'adaptabilité et de compatibilité des HGEF avec le niveau de corruption dans l'environnement des entreprises fournit un résultat qui contredit la position académique commune qui soutient la nature intrusive de la corruption et son impact sur le taux de croissance d’une entreprise.Enfin, en conjonction avec la perspective académique centrée sur le développement, la recherche conclut en soulignant la nécessité d'intégrer la représentation idiosyncratique de l'entrepreneur et de l'entrepreneuriat dans la conception des politiques publiques pour favoriser la croissance et adapter le soutien selon le cycle de vie des entreprises
High-growth firms account for a disproportionate share of new job creation in most economies. This has led to the emergence of a diverse agenda that examines these firms to determine their characteristics and the engine behind their superior growth rate. In particular, there is abundant literature that focuses on developed countries with a large portion of the research tilted towards prescribing growth enabling public policy changes. In the context of developing countries, little or no attention was given to high-growth firms. Hence, it is the purpose of this research to investigate high-growth firms in the Ethiopian market setting which has registered unprecedented economic growth rate for the past 10 years.In doing so the different chapters of this research are devoted to transforming the definition of a high-growth firm by giving the necessary attention to the growth engendering phenomenon from an entrepreneurial dimension, centering the role of the entrepreneur and entrepreneurship as the catalyst of growth. As such, the research formulates a HGEF definition aided by a theoretical framework that exhibits the growth strategy and process of firms with the aim of emphasizing the role of the entrepreneur and entrepreneurship in inducing a superior growth rate.The research takes a particular focus on to what extent business environment obstacles may hamper HGEFs in Ethiopia by studying the impacts of infrastructure, public utilities, capacity, administrative burden and procedures, finance, and corruption to HGEFs operation together with a search for their incidence level.To test the contribution of Ethiopia’s HGEF to new job creation, both quantitative and qualitative methods are applied under “Convergent Parallel Mixed Methods Design” research format. The first phase of the investigation will utilize the World Bank data of 848 Ethiopian firms to measure incidence level and business environment impact analysis. In the second phase, the result of the field work that captured data through interviews of 9 HGEFs to verify and test preliminary findings will be used to add new insight to the issue.The findings of the research convey counterintuitive outcomes that shows that HGEF potential for development through new job creation resides in traditional sectors of the economy with minimal presence in sectors that necessitates high capital and technical investment.Moreover, the level of adaptability and compatibility of HGEFs with corruption level in the business environment provides a result that contradicts the commonly held academic position that argue the intrusive nature of corruption and its impact on firm growth rate.Finally, in conjunction with the developmental centric academic perspective the research concludes by emphasizing the need to incorporate the idiosyncratic representation of entrepreneur and entrepreneurship in public policy design to favor growth and to tailor support according to the life cycle of firms
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Hatem, Omaima. "High growth and rapid internationalisation of firms from emerging markets : the case of the Middle East and North Africa (MENA) Region." Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/9894.

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The aim of this thesis is to understand the phenomena of the high growth and rapid internationalisation of firms from emerging markets. It explores the applicability of international entrepreneurship theory to the context of the emerging market enterprises in the Middle East and North Africa (MENA) region. It integrates the literature of strategic entrepreneurship and that of portfolio entrepreneurship with the literature of international entrepreneurship to provide a closer fit of applicability in that context. The main research questions of this thesis focus on: why, where, and how do some emerging market enterprises grow fast and internationalise early and rapidly? Particular attention is paid to entrepreneurs, entrepreneurial teams and the entrepreneurial process in the discovery, evaluation, and exploitation of new business opportunities. Despite the strength of the international entrepreneurship theory in identifying the sources of rapid internationalisation for small and medium enterprises from developed markets, it has been criticized for failing to address the same phenomena for firms from emerging markets. This thesis explores why, where, and how the MENA region emerging market firms have attained their spectacular performance over the last few years up to 2008, and contributes to filling the theoretical gap in the literature. This exploratory study suggests that the entrepreneurial and management processes of international business opportunities play an important role in achieving the high growth and rapid internationalisation of firms from emerging markets. A multiple case study strategy was adopted, and qualitative data was collected through interviews with entrepreneurs and entrepreneurial team members in the research site of the emerging markets of the MENA region. Other interviews with financial experts, staff of international financial institutions, and international analysts in specialized publications were conducted in order to achieve triangulation and bias minimization. Guided by a newly formulated conceptual theoretical framework, data was explored and thematically analysed by coding into different categories to enhance the understanding of the processes that underlined the entrepreneurial strategies associated with the rapid internationalisation and high growth of the theoretically sampled case companies. Resource orchestration, innovativeness, entrepreneurial leadership and international diversification were found to be crucial elements employed by lead entrepreneurs and their entrepreneurial team members through utilising human and social capital of networks and knowledge throughout the internationalisation process. The findings revealed that integrating the concepts of strategic entrepreneurship and portfolio entrepreneurship with international entrepreneurship produced a coherent approach to the application of those theories to understanding the behaviour of multinational enterprises from the MENA region. However, other valuable themes emerged from the findings. Chief among those are: strategically targeting hostile markets with inefficient institutional competencies and insufficient infrastructure, thus benefiting from a no competition status. Networking internally with entrepreneurial team members and international churning were other key elements revealed by the findings that explained the interactions and processes which enhanced the companies’ rapid internal growth, A recommendation for management practice is made for firms to encourage internal networking with entrepreneurial teams’ members thus enhancing trust and supporting intrapreneurs’ initiatives in identifying and exploiting new international opportunities. A mainstream policy recommendation for emerging markets is to strengthen the private sector performance with government incentives of a financial (tax reductions, banking facilities) and non-financial (political reform, education and health services) nature to encourage such entrepreneurial activities. In addition to its contribution to the theoretical understanding of high growth and rapid internationalisation from emerging markets, the findings of this thesis accentuate the impact of the pattern of internationalisation into antagonistic environments with scarce infrastructure as a strategic entrepreneurship process of deployment of dynamic capabilities to craft unique competitive advantages thus achieving and sustaining high growth and performance in new international markets. This thesis is also unique in compiling the first dataset for MENA region enterprises with similar attributes of high growth and rapid internationalisation.
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Jones, Marian Vanessa. "International expansion of small high technology based firms : the role of external linkages in international growth and development." Thesis, University of Strathclyde, 1998. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=20369.

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This thesis examines the internationalisation of small firms in high technology sectors based in England and Scotland. The conceptual stance taken is that internationalisation is part of the growth and development process of small firms and needs to be viewed holistically. Internationalisation processes are examined chronologically by tracking the external links made by the sample firms from their inception until the date of the survey. The theoretical approach is eclectic, drawing on internalisation/transaction cost, network, internationalisation and resource-based approaches to explanation of firm growth and specifically, their international development. The constructs of the research, the external links, are constructed on the dimensions of internal and external links, inward and outward links and are differentiated by strategic value chain activities research and development, production, and marketing/distribution. The findings of the research indicate that most small technolog y based firms do not internationalise in an export-based evolutionary pattern. Rather, intemationalisation processes are diverse and complex, often reflecting areas of specialisation of the firm, or its internal growth processes. The research indicated that internationalisation is accelerating for the small firm sector, at least in high technologies, with first international links occurring immediately or soon after inception. The factors influencing internationalisation tend to be firm specific and associated with the capabilities, competencies and resources of the associated firms. The major contribution of this thesis is in its development of a conceptual approach which allows the heterogeneity of small firms to be taken into account in the research design, focuses on the holistic growth and development of the firm rather than a functional perspective, and makes a significant advance towards the integration of different theoretical approaches to the development of small international firms. There are important implications in the findings, amongst which is evidence that small firms in certain sectors are subject to influences from international, if not global, industries at an early stage. These firms need to be prepared to compete at international level, and become involved in cross border activity at very eariy stages in their development. At policy level, the imperative is to provide appropriate infrastructural support and advice which goes beyond the encouragement of exports and recognises that small firms may be involved in additional or alternative internationalisation processes than to the conventional export route broadly recognised within the policy framework.
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Eskilsson, Malin, and Theresia Sape. "Tillväxt - möjligheter och begränsningar : En studie om interna tillväxthinder i snabbväxande företag." Thesis, Linköpings universitet, Företagsekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129807.

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Bakgrund: Snabbväxande företag bidrar med majoriteten av alla nyskapade jobb i Sverige. Tidigare forskning har dock visat att dessa företag får problem i och med snabb tillväxt, något som leder till att de inte blir uthålliga över tid. Vid en kartläggning av tidigare studier påträffades en avsaknad av forskning som har till syfte att förklara varför snabbväxande företag inte är uthålliga, varav vi ansåg det vara av intresse att studera fenomenet interna tillväxthinder.  Syfte: Syftet med studien är att genom grundares perspektiv identifiera interna tillväxthinder inom snabbväxande företag. I samband med detta undersöks hur de snabbväxande företagen tar sig an och överkommer dessa barriärer. Genomförande: Denna studie har utgått från en kvalitativ forskningsmetod, med ett induktivt angreppssätt för att kunna utforska fenomenet interna tillväxthinder. Studien har genomförts med utgångs-punkt i intervjuer med fyra grundare av tillväxtföretag. Slutsats: Studien har kunnat identifiera fyra områden som utifrån företagsgrundares berättelser haft särskild betydelse för överkomsten av tillväxthinder. Studien indikerar att de fyra områdena kan utvecklas till tillväxthinder om snabbväxarna inte arbetar med dem på rätt sätt, men kan med största sannolikhet omvandlas till tillväxtmöjligheter om grundaren inser värdet av att arbeta med dessa.
Background: High-growth firms contribute to a majority of all newly created jobs in Sweden. Recent studies have shown that these companies encounter problems and growth barriers as a result of their rapid growth. After investigating the study field of high-growth firms we found an absence of research that seeks to explain why they are not persistent over time. We consider it to be of interest to study the phenomenon of internal growth barriers.  Aim: The aim of this study is to identify internal growth barriers in high-growth firms through the perspective of the founders. In relation to this we examine how the high-growth firms undertake and overcomes these barriers. Completion: This study is based on a qualitative research strategy, with an inductive study approach, to enable an exploration of the phenomenon internal growth barriers. The study was conducted based on interviews with four founders of high-growth firms. Conclusion: The study has been able to identify four areas based on the founders' dictums, which had special significance for the emergence of internal growth barriers. The four areas can be developed to emerging growth obstacles if the high-growth firms do not consider their importance. This study suggests that the growth barriers most likely can be converted to growth potentials if the firms realize the importance to develop them.
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Edberg, Elsa, and Josefine Ryss. "Managing the social- and financial dimensions in Swedish gazelle companies - A qualitative study from the founder ́s perspective." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388660.

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The study aims to create a deeper understanding and gain more knowledge about the complex and dynamic management processes in gazelle companies, in relation to both social- and financial aspects. We argue that financial challenges, such as funding and cash flow controls, are closely connected to social dimensions as human resources and company-specific strategies. Thus, it is not sufficient to handle them separately, since both social- and financial processes are closely connected and influenced by different stakeholders. The research displayed that human resources management practices and finance practices were more important than the other three dimensions. The companies that participated in our study also seem to have different attitudes towards external investors/stakeholders, depending on if they were founded before or after the financial crisis in 2008.
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Salvador, Federico Juan. "Advances in the research on young business growth: persistence, impact on profits and the moderating role of firm age." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/394070.

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Esta tesis contribuye a la literatura sobre crecimiento en empresas jóvenes al focalizarse sobre su persistencia y su impacto sobre la rentabilidad, dos aspectos donde es necesario un mayor desarrollo teórico y donde la evidencia empírica no sólo es escasa sino también ambigua. A partir de los aportes de E. Penrose, el enfoque de la empresa basado en los recursos y la teoría evolucionista, esta tesis de doctorado examina (i) la relación entre el crecimiento y la rentabilidad, (ii) el nivel de autocorrelación entre las tasas de crecimiento, y particularmente, (iii) el grado de persistencia de los períodos de alto crecimiento y su impacto sobre la rentabilidad empresarial. A partir de bases longitudinales de datos de panel, extraídos del SABI©, esta tesis analiza diferentes cohortes de empresas españolas, tanto manufactureras como de servicios, durante sus primeros años de vida. Esta tesis está estructurada sobre la base de tres artículos, cada uno correspondiente a uno de los tres objetivos mencionados precedentemente. Los resultados del primer artículo muestran que, a diferencia de lo que varias teorías sugieren, los beneficios no afectarían el crecimiento en las empresas jóvenes al tiempo que la relación inversa sí se verifica, desde el crecimiento hacia los beneficios. Un dato interesante es que ambas relaciones se encuentran afectadas por altos niveles de heterogeneidad, tanto entre sectores como dentro de un mismo sector, a nivel de las empresas. El segundo artículo muestra que en general las tasas de crecimiento entre las empresas jóvenes, tienden a mostrar una correlación positiva. Esto es, las tasas tienden a ser persistentes en el tiempo, hecho que contradice varios estudios previos que incluso planteaban que las tasas de crecimiento eran aleatorias. Sin embargo, esta relación positiva está afectada por la edad de la empresa. En efecto, este artículo muestra que a medida que la empres va madurando, su crecimiento se va haciendo más errático y por ende, menos persistente. Específicamente, los resultados muestran que el quinto año de vida representa un punto de quiebre en la trayectoria de crecimiento de las empresas. El tercer y último artículo, demuestra en primer lugar que las empresas de alto crecimiento difícilmente pueden sostener períodos de alto crecimiento sucesivos y que los mismos tienen un leve impacto positivo sobre la rentabilidad. Todos estos resultados tienen importantes implicancias tanto para el desarrollo teórico como para futuras investigaciones sobre el crecimiento de empresas jóvenes, discutiendo teorías previas a la luz de nuevas evidencias empíricas.
This dissertation contributes to the research on young firms’ growth by analyzing two major issues, namely growth persistence and its impact on profits, where further theoretical development is needed and the empirical evidence is scarce and inconclusive. Based on Penrose’s approach, the resource-based view and evolutionary economics, this doctoral thesis examines (i) the relationship between firm growth and profits, (ii) the autocorrelation among young firms’ growth, and particularly, (iii) the growth persistence and the impact of growth on profits in the case of high-growth firms. Employing longitudinal panel data extracted from SABI©, this dissertation analyzes different cohorts of Spanish young firms from manufacturing and services sectors, during their earlier years of life. This thesis is organized upon three different papers, each one corresponding to one of the aforementioned objectives. The results of the first paper show that unlike some theories suggest, profits do not affect young firm growth whereas firm growth indeed enhances firm profits. Interestingly, these relationships are highly affected by intra- and inter-industry heterogeneity. The second paper indicates that young firm growth rates tend to exhibit a positive autocorrelation, that is, growth rates are persistent over time, which contrasts several previous studies. Nevertheless, as long as firm matures this positive correlation becomes more erratic, being the fifth year a turning point in a young firm growth path. The last paper, in turn, demonstrates that high growth firms are unlikely to sustain their high growth episode for more than one period and that these episodes show a slightly positive impact on subsequent profits. Additionally, this impact is higher if the high growth episode takes place once the firm surpasses its first few years. All these findings have important implications for theory development and future research on young firm growth, discussing previous theories in the light of the new empirical evidence.
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Pina, Filipa Alexandra Norte. "Gazelles and their initial capital structure." Master's thesis, Instituto Superior de Economia e Gestão, 2018. http://hdl.handle.net/10400.5/17637.

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Mestrado em Finanças
Empresas gazelas têm sido alvo de muitos estudos dado o seu importante contributo para a economia. Elas são, segundo a OCDE, empresas com menos de cinco anos que, tendo um número mínimo de trabalhadores, atingem um crescimento anualizado de 20% ao ano durante três anos consecutivos. O objetivo deste trabalho é perceber se existem diferenças que distingam a estrutura de capital de empresas gazelas de empresas não gazelas. Mais especificamente, nós avaliamos se as gazelas apresentam maiores necessidades de capital e se as fontes de capital divergem entre os dois tipos de empresa. A fim de cumprimos o objetivo deste trabalho, utilizámos a base de dados "Central de Balanços" que é composta por dados de todas as empresas portuguesas criadas entre 2006 até 2015. Assim, identificámos cerca de 94 066 empresas não financeiras nascidas entre 2006 e 2011 das quais apenas 307 são gazelas. Os nossos resultados sugerem que as empresas gazelas obtêm valores mais elevados de capital total inicial, sugerindo que estas empresas têm maiores necessidades de financiamento do que as não-gazelas. A fim de financiarem as suas atividades, as gazelas tendem a usar mais capitais próprios do que dívida, uma vez que apresentam valores do rácio debt-to-capital inferiores às empresas não gazelas, mesmo considerando que a crise financeira e soberana influenciou a subida deste rácio para empresas nascidas entre 2008 e 2011.
Gazelle firms have been the center of many studies given their important contribution for the economy. According to OECD, they are firms with less than 5 years that, have a minimum number of employees, achieve an annualized growth of 20% a year for three consecutive years. The goal of this study is to understand the differences in the capital structure between gazelle and non-gazelle firms. More specifically, we evaluate if gazelle present higher financial needs and if the sources of financing differ from non-gazelle firms. In order to achieve this goal, we used the "Central de Balanços" database that includes data from all Portuguese firms from 2006 to 2015. Thus, we identify 94 066 non-financial firms born between 2006 and 2011, from those only 307 are gazelles firms. Our results suggest that gazelle firms raise higher amounts of initial capital, suggesting that these firms have higher financial needs than non-gazelle firms. To finance their activities, gazelle firms tend to use more internal funds, since they present lower debt-to-capital ratios, even considering that the financial and sovereign crisis tend to increase the D/C ratio for companies born between 2008 and 2011.
info:eu-repo/semantics/publishedVersion
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Bara, Carlos Roberto Francisco. "Variáveis relevantes para as empresas de alto crescimento no Brasil." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/12/12139/tde-11062018-114840/.

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Empreendedorismo tem sido objeto de incentivo no mundo e no Brasil, dada a sua significante contribuição para o desenvolvimento econômico e social de uma nação. Observa-se que a maioria das empresas, existentes ou novas, evolui de forma lenta e gradual; no entanto, reduzida parcela apresenta um padrão diferente, com crescimento elevado em faturamento ou número de colaboradores: são as empresas de alto crescimento (EACs). Tais empresas são as responsáveis por grande parte da geração de empregos (Birch, 1981; Coad, Daunfeldt, Holzl, Johansson, & Nightingale, 2014; Henrekson & Johansson, 2010; OECD, 2010). A presente tese procurou identificar as variáveis que ajudam a explicar o desempenho das EACs no Brasil, classificadas conforme critério da OECD (2007). Foi conduzida uma pesquisa com 470 empresas brasileiras, que coletou mais de 30 variáveis preditoras categóricas ou métricas, utilizadas no modelo Regressão Logística. Foram identificadas algumas variáveis alinhadas com a literatura e outras menos intuitivas e documentadas. Comprovou-se o aumento da probabilidade de EACs quando se relacionavam com aceleradoras, recebiam premiações ou eram spin-offs de outras empresas. Em função das altas taxas de juros bancários e da cultura empreendedora no Brasil, surpreendeu o impacto positivo de empréstimos bancários e a percepção dos empreendedores sobre registrar marcas comerciais, bem como o impacto negativo da percepção sobre propaganda em mídia digital e doações de instituições de fomento, relacionadas às EACs. Análises adicionais com o subgrupo de EACs caracterizadas como gazelas foram feitas. Embora apresente limitações de surveys e outras, a tese confirmou parte dos resultados da literatura sobre empreendedorismo e identificou avenidas para futuras pesquisas.
Entrepreneurship has been object of encouragement in the world and in Brazil, given its significant contribution to the economic and social development of a nation. It is observed that the majority of companies, existing or new, are developing slowly and gradually; however, small share presents a different pattern, with high growth in sales or number of employees: they are the high growth firms (HGFs). These firms are responsible for a large part of job creation (Birch, 1981; Coad, Daunfeldt, Holzl, Johansson, & Nightingale, 2014, Henrekson & Johansson, 2010, OECD, 2010). This thesis aimed to identify the variables that help to explain the performance of HGFs in Brazil, according to OECD (2007) criterion. A survey with 470 Brazilian companies was conducted, collecting more than 30 categorical or metric predictor variables, used in the Logistic Regression model. Some identified variables were aligned to literature, but others less intuitive or documented. It was confirmed the increase in the probability of HGFs when they related to accelerators, received awards, or were spin-offs of other companies. As a consequence of the high banking interest rates and the entrepreneurship culture in Brazil, surprised the positive impact of bank loans and the entrepreneurs\' perception of trademark registration, as well as the negative impact of perception on advertising in digital media and donations from development institutions, related to HGFs. Additional analyzes with the subgroup of HGFs characterized as gazelles were made. Although it presents limitations of surveys and others, the thesis confirmed part of the results of the literature on entrepreneurship and identified avenues for future researches.
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Wilson, Heather Irene. "The impact of venture capital funding on the growth of small high technology manufacturing firms in the United Kingdom : a regional comparison of firms located in the South East of England and Scotland." Thesis, Heriot-Watt University, 1992. http://hdl.handle.net/10399/781.

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This thesis is a theoretical and empirical study of the impact of venture capital funding on the growth of small high technology manufacturing firms located in the South East of England and Scotland. In order to set the research in context, information is provided on the history of investment finance, public sector involvement in high technology companies and venture funding, and the emergence and structure of the United Kingdom venture capital industry visa- vis the United States example. This literature review, along with a consideration of the issues which prompted the research, lead to the formulation of seven principal hypotheses. These hypotheses are tested by means of data generated from two surveys, a postal questionnaire and personal interviews, both involving manufacturing firms in the high technology study industry. This information is supplemented by qualitative interviews with a small number of venture capital organisations. The principal areas of investigation include: the use of external finance, in general terms, by survey firms; the distribution and impact of venture capital finance within the study industry; and the unique role played by venture capital organisations in relation to other financial services. Explanations are also offered for the pattern of venture capital distribution according to the business plan content, and the attitude of the main founder towards ownership and control of the company. Finally, the thesis offers some conclusions and recommendations for theory, practice and policy based on the comparison of theoretical and empirical issues. Principally, these require a re-structuring of the United Kingdom venture capital industry.
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Hakkala, Katariina. "Essays on restructuring and production decisions in multi-plant firms." Doctoral thesis, Handelshögskolan i Stockholm, Samhällsekonomi (S), 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hhs:diva-555.

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This thesis consists of four self-contained essays. The common theme of the essays is the behavior of multi-plant firms. An underlying idea in all four of them is that firms possess intangible assets such as management skills and organizational expertise, technological knowledge, marketing know-how and better access to finance capital or natural resources. These assets are typically specific to the respective firm. Due to market imperfections and failures, firms tend to internalize the advantages of firm-specific assets and exploit them themselves rather than sell or lease them to other firms. For instance, intangible assets are often joint inputs in the sense that knowledge developed by one unit can be transferred to another unit within the same firm at a low cost and without diminishing the amount of knowledge available to the first unit. Furthermore, the assets are typically only partly appropriable by their owner, and the market transactions of the assets are hampered due to information asymmetries between a potential buyer and seller. The literature on multinational firms emphasizes the role of intangible firm-specific assets in creating ownership advantages that, together with location and internalization advantages, explain the pattern of foreign direct investments. The essays in this thesis are based on the view that the ownership advantages created by firm-specific assets are the "raison d'etre" of large multi-plant firms. The existence of such assets is assumed to create multi-plant economies of scale and give incentives to make better use of capacity or overheads to gain advantage in size, economies of interdependent activities, integration and/or diversification. Rather than studying the international aspects of firms with intangible assets, the first three essays empirically explore different aspects of multi-plant firm behavior in domestic markets. This analysis has been made possible by the access to unique plant-level data on the thirty largest multinational manufacturing corporations in Sweden. The sample corporations play an important role in the Swedish economy. For instance, the thirty corporations account for about 70 percent of aggregate industrial R&D in 1999. This should be compared with their share of total manufacturing employment, which was about 30 percent during the period of study. The first essay examines the sources of productivity growth within multi-plant firms and particularly emphasizes the role of external restructuring and ownership changes in explaining why multi-plant firms may sustain higher productivity growth as compared to single-plant firms. The second and the third essay explore the idea that large multi-plant corporations exploit their ownership advantages when acquiring partial- and full-firm assets. The second essay analyzes whether technological intangible assets may explain transfers of productive capacity from acquiring corporations to their target. The third essay explores the idea that multi-plant corporations search for targets matching their firm-specific organizational capabilities when acquiring corporate assets. Uncertainty about the matching outcome explains why some acquisitions end in divestitures. However, the likelihood of a "good" match is expected to increase in the buyer's organizational capabilities. The fourth essay, coauthored with Karolina Ekholm, extends the analysis to encompass the international aspects of multinational firms. In this essay, we develop a theoretical model analyzing the localization decisions of multi-plant firms beyond the national borders. More specifically, we develop a two-country model where firms can choose to separate their innovative activities generating an intangible asset from the production of the final good. In our model, there are two agglomeration forces: knowledge spillovers associated with R&D and backward and forward linkages associated with high-tech production. We analyze how the interplay of these forces affects the localization decisions of the firms.
Diss. Stockholm : Handelshögsk., 2003
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Al-Shakargi, Sermed, and Ardit Sakipi. "Hur mångfald i styrelsen påverkar den finansiella prestationen i svenska tillväxtbolag listade på First North Growth Market : En kvantitativ studie om tillväxtbolagens mångfald i styrelsen och dess påverkan på den finansiella prestationen." Thesis, Högskolan Kristianstad, Fakulteten för ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-22540.

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Syftet med denna kandidatuppsats är att undersöka hur mångfald i styrelsen påverkar den finansiella prestationen för svenska tillväxtbolag listade på First North Growth Market. Tillväxtbolag står för hälften av hela arbetssysselsättningen och produktionen i höginkomstländer och utgör därmed en betydelsefull roll i samhället. Under de rådande omständigheterna med Covid-19 pandemin, drabbas företagens ekonomi och riskerar likvidation. En avgörande faktor för att tillväxtbolag ska fortsätta växa och överleva ekonomiska svårigheter, är styrelsens sammansättning. Därav studiens fokus på mångfald i styrelsen och dess påverkan på den finansiella prestationen i form av ROA och Tobins Q för svenska tillväxtbolag. Vidare har denna studie tillämpat agentteorin och The Upper Echelon Theory för att skapa förståelse kring kopplingen mellan styrelsens sammansättning, den finansiella prestationen och beslutsfattandeprocessen.Studien grundar sig i en kvantitativ forskningsansats tillsammans med ett positivistiskt synsätt, vilket gör det möjligt för resultatet att generaliseras. Studiens datainsamling består av 40 svenska tillväxtbolag listade på First North Growth Market. Resultatet i denna studie visar att mångfald inom kön i styrelsen påverkar den finansiella prestationen i form av ROA positivt. Vidare finner studien inget signifikant samband mellan ursprung, utbildning och den finansiella prestationen.
The purpose with this bachelor thesis is to explore how board of director diversity affects the firmfinancial performance for Swedish high growth firms listed in First North Growth Market. High growth firms stand for half of the work employment and production in high income countries and constitute therefore a significant role in society. During the current circumstances with the Covid-19 pandemic, the companies’ finances are affected and risk liquidation. A crucial factor for high growth firms to continue to grow and survive financial difficulties, is the composition of the board. Thereby this study’s focus is on diversity in the board and its effect on the firm financial performance in terms of ROA and Tobins Q for Swedish high growth firms. Furthermore, this study has implemented agent theory and The Upper Echelon Theory to create an understanding about the connection between the board’s composition, the firm financial performance and the decision-making process.The study is based on a quantitative research approach together with a positivist research philosophy, which makes it possible for the result to be generalized. The study’s data collection consists of 40 Swedish high growth firms listed in First North Growth Market. The result in this study shows that ROA was positively correlated with diversity in gender in the board. Further, the study’s results find no significant correlation between ethnicity, education and the firm financial performance.
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28

Martínez, Aceves Daniel. "Emprendedores universitarios y spinups: El caso de startupv el ecosistema emprendedor de la Universitat Politècnica de València." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/64079.

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[EN] UNIVERSITY ENTREPRENEURS AND SPINUPS: THE CASE OF STARTUPV, THE BUSINESS ECOSYSTEM AT THE UNIVERSITAT POLITÈCNICA DE VALÈNCIA Presented by: Daniel Martínez Aceves Directed by: Dr. Ignacio Gil Pechuán & Dr. José Millet Roig Abstract: The format chosen to present this doctoral thesis is the compendium of publications. Each of the three selected articles provides new data to respond to the objectives and issues raised by the thesis: the characterization of the university entrepreneur and the firms that are generated by entrepreneurial university ecosystems. The compendium begins with a general analysis based on an international sample of 12 countries and 20,000 graduates, and ends with a particular case study of entrepreneurs linked to a local university ecosystem. Describing the different characteristics that exist among young university entrepreneurs, self-employed workers and employees at an international level, as well as identifying their competences is the objective of the first article. The second contribution focuses on the gender-related differences among entrepreneurs, identifying their motivation for undertaking new enterprises and establishing their potential differences The most significant differences in gender are closely related to conciliating work and personal/family life. Result from the third article show that universities can play a determining role in the generation of future high-growth firms. The study concludes that future research must contribute more data in order to continue to define a new concept in newly created firms: the spinup or university gazelle; a businesses founded at a university which is halfway between a startup and a spinoff company. Universities are natural incubators for projects that can help to solve social challenges and improve society. The objective of future research in this sense, should be to improve our understanding and analysis of the common characteristics that can be extrapolated to other ecosystems, which implies a sizeable challenge given the unique, inimitable nature of entrepreneurial ecosystems.
[ES] EMPRENDEDORES UNIVERSITARIOS Y SPINUPS: EL CASO DE STARTUPV, EL ECOSISTEMA EMPRENDEDOR DE LA UNIVERSITAT POLITÈCNICA DE VALÈNCIA Presentada por: Daniel Martínez Aceves Dirigida por: Dr. Ignacio Gil Pechuán y Dr. José Millet Roig Resumen: El formato elegido para presentar la tesis es el de compendio de publicaciones. Cada uno de los tres artículos seleccionados, aporta nuevos datos a los objetivos y preguntas que se plantea esta tesis: caracterizar al emprendedor universitario y las empresas que se generan en los ecosistemas emprendedores universitarios. Se parte de un análisis general con una muestra internacional de 12 países y 20.000 egresados, para, posteriormente, concluir con un estudio de un caso concreto de emprendedores vinculados a un ecosistema universitario local. Describir las características diferenciales existentes entre los jóvenes emprendedores universitarios, los autónomos y los trabajadores a nivel internacional así como sus competencias es el objetivo del primer artículo. El segundo artículo, pretende identificar y analizar las posibles diferencias de género existentes entre los emprendedores en lo relativo a las motivaciones para crear una empresa y en la conciliación de la vida laboral y personal. Los resultados del tercer artículo, ponen de manifiesto que las universidades pueden tener un papel determinante en la generación de futuras empresas de alto crecimiento. En este último artículo se plantea un nuevo concepto de empresa, las "spinups", empresas fundadas en ecosistemas emprendedores universitarios que se encuentran entre las startups, las spinoffs y las empresas gacela. Las universidades son incubadoras naturales de proyectos de empresa, que en muchos casos pueden contribuir a la mejora de la sociedad. El objetivo de las futuras investigaciones debe ir dirigido hacia la comprensión y el análisis de las características comunes que puedan ser extrapolables a otros ecosistemas, lo cual supone un importante reto ya que los ecosistemas emprendedores son únicos e irrepetibles.
[CAT] EMPRENEDORS UNIVERSITARIS I SPINUPS: EL CAS DE STARTUPV, L'ECOSISTEMA EMPRENEDOR DE LA UNIVERSITAT POLITÈCNICA DE VALÈNCIA Presentada per: Daniel Martínez Aceves Dirigida per: Dr. Ignacio Gil Pechuán i Dr. José Millet Roig Resum: El format triat per a presentar la tesi és el de compendi de publicacions. Cadascún dels tres articles seleccionats, aporta noves dades als objectius i les preguntes que es plantega aquesta tesi: caracteritzar l'emprenedor universitari i les empreses que es generen en els ecosistemes emprenedors universitaris. Es parteix d'una anàlisi general amb una mostra internacional de 12 països i 20.000 egressats; per a, posteriorment, concloure amb un estudi d'un cas concret d'emprenedors vinculats a un ecosistema universitari local. Descriure les característiques diferencials existents entre els joves emprenedors universitaris, els autoempleats - els autònoms i els treballadors a nivell internacional així com les seues competències és l'objectiu del primer article. El segon, es centra en les diferències de gènere dels emprenedors, identificant les motivacions que porten a les emprenedores i als emprenedors a crear una empresa i veure les possibles diferències. Les diferències de gènere més significatives apareixen en la forma d'afrontar la conciliació de la vida laboral i personal. Els resultats del tercer article, posen de manifest que les universitats poden tindre un paper determinant en la generació de futures empreses d'alt creixement. Així i tot, futures recerques han d'aportar més dades per a seguir definint un nou concepte, "spinup" o empresa gasela universitària, una empresa fundada en un ecosistema emprenedor universitari que es troba entre una startup i una spinoff. Les universitats són incubadores naturals de projectes que poden ajudar a solucionar reptes socials i millorar la societat. L' objectiu de les futures recerques ha d'anar dirigit cap a la comprensió i anàlisi de les característiques comunes que puguen ser extrapolables a altres ecosistemes, la qual cosa suposa un important repte ja que els ecosistemes emprenedors són únics i irrepetibles.
Martínez Aceves, D. (2016). Emprendedores universitarios y spinups: El caso de startupv el ecosistema emprendedor de la Universitat Politècnica de València [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/64079
TESIS
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29

Bell, Alexander. "Studies on exploration and exploitation : concepts, roles and dynamics." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLED077.

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L’intensité concurrentielle et les évolutions technologiques n’ont jamais été aussi intenses. Aussi, les entreprises en quête de pérennité sont-elles de plus en plus confrontées à une nécessité d’exploiter leurs activités actuelles et d’explorer des activités futures. Or la gestion de ce double impératif est loin d’être évidente, générant potentiellement d’importantes tensions au sein des entreprises. Bien que la recherche en management ait permis de mieux appréhender cette tension d’Exploration/Exploitation, il reste des zones de contradiction et des espaces non explorés. En particulier, il n’y a pas de consensus sur les définitions des concepts d’exploration et d’exploitation, ne permettant pas ainsi de garantir une certaine cohérence dans la recherche (Birkinshaw & Gupta, 2013). D’autre part, la tension Exploration/Exploitation n’a que très peu été étudiée dans le contexte des jeunes entreprises de croissance - également appelées « scale-up » - qui ont la particularité d’être exposées à de forts enjeux de survie. Ainsi, afin de contribuer à une meilleure compréhension des problématiques que soulève cette tension au sein de celles-ci, un format de thèse sur travaux, comprenant trois études complémentaires, est adopté.Au préalable, afin de cadrer conceptuellement la thèse, je réponds, dans une première étude, à l’appel des chercheurs pour la clarification des concepts d’exploration et d’exploitation en proposant une typologie d’exploration. Puis, par l’intermédiaire d’une approche multi-cas longitudinale menée auprès de huit jeunes entreprises de croissance, j’explore tout d’abord, dans une deuxième étude, les facteurs influençant les orientations stratégiques des entreprises quant à leurs activités d’exploration et d’exploitation. Enfin, dans la troisième étude, je cherche à comprendre comment le fonctionnement des équipes de direction définit les rôles de chacun dans les activités d’exploration et d’exploitation
Competition and technological change have never been as intense as they are today. To survive, companies must increasingly carry out current activities at the same time that they explore future ones. It is no easy task to operate on both of these fronts, and doing so is a potential source of tension and contradiction. Although management research has provided insight into the exploration and exploitation tension, there are still contradictions and unexplored areas. In particular, there is no consensus on the definition of the concepts of exploration and exploitation, which means the research lacks a certain level of consistency. In addition, there has been very little attention paid to the Exploration/Exploitation tension in the context of young, growing “scale-up” companies, which are particularly exposed to threats to their survival. To obtain a better understanding of the situations this tension causes in these companies, we have adopted a multi-paper dissertation consisting of three complementary studies.In the first study, to create a conceptual framework for the thesis, we answer researchers’ call for a clarification of the concepts of exploration and exploitation by proposing a typology of exploration. Then, based on a longitudinal, multi-case approach focused on eight scale-up companies, we first explore, in a second study, the factors influencing firms’ strategic orientations vis-à-vis exploration and exploitation activities. Finally, in the third study, we seek to understand how management teams define their individual roles with respect to exploration and exploitation activities
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30

Asano, H., N. Kozuka, A. Tsuzuki, and M. Matsui. "Growth and properties of high-Curie-temperature Sr_2CrReO_6 thin films." American Institute of Physics, 2004. http://hdl.handle.net/2237/7009.

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31

Harkin, A. "The construct of firm growth : an insight into the lived experiences and perspectives of high-growth firm stakeholders." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557611.

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In consideration of the mounting importance o(firm growth in today's economy, there was a vital necessity to address ) a gap in the growth literature as a matter of priority. Over the duration of this research project, a review of the relevant literatures revealed that existing research on firm growth was underdeveloped both conceptually and empirically. Consequently, the overall aim of this doctoral study was to gain a greater understanding of firm growth by means of a comparison of the experiences and perspectives of the high-growth firm stakeholders in Northern Ireland in an attempt to build a more comprehensive and holistic picture the construct of firm growth. This involved an exploratory study employing an in-depth qualitative research design providing the opportunity for a greater understanding of the meanings, values and beliefs that the participants attached to their realities of growing a ) business. In-depth interviews and focus groups were the primary sources of empirical evidence used to address the research questions of interest. Drawing on the high growth firm stakeholders' perspectives and experiences which inform this research, the findings indicate that high-growth business leaders and those charged with supporting such firms have several diverse perspectives and experiences of growth. Indeed, the results would appear to suggest that high-growth stakeholders do not necessarily talk about the same thing when referring to growth, highlighting heterogeneity in perspectives. In a similar vein, a gap exists between growth measures commonly employed in the literature and what the business leaders view as actual growth. Another conclusion to emerge from this study was that context matters and must be taken into consideration when studying firm growth. Moreover, this doctoral study posits that stakeholder theory has the potential to make a worthy contribution and offer some insights into the area of firm growth.
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Mesoraca, Salvatore. "Growth of spinel oxide thin films for high efficiency room temperature spin filtering." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275286.

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In this thesis, the potential of all-spinel oxide tunnel junctions in the field of spintronics has been investigated. In particular, the suitability of the metallic and superconducting LiTi2O4 as non-magnetic electrode in an almost defect-free CoFe2O4-based spin-filter tunnel junction has been explored. For this purpose, high-quality spinel LiTi2O4 and CoFe2O4 thin films have been deposited by pulsed laser deposition on MgAl2O4 substrates. Both films were extensively characterised in terms of structural, surface, magnetic and transport properties. The LiTi2O4 showed metallic and superconducting properties, and the CoFe2O4 had insulating and ferromagnetic properties. A careful tuning of the different growth conditions of these oxides followed in order to grow CoFe2O4/LiTi2O4 bilayers in which LiTi2O4 maintains its metallic and superconducting properties and CoFe2O4 its insulating ferromagnetic characteristics. Transport measurements at low temperature have been carried out to explore details of the tunnelling in symmetric tunnel junctions of the form LiTi2O4/CoFe2O4/LiTi2O4. The measured current–voltage characteristics of these junctions revealed clear Josephson junction behaviour due to superconductivity of the LiTi2O4 electrodes. This conclusive evidence of the tunnel nature of these junctions proves that LiTi2O4 can be used as bottom electrode in all-spinel oxide tunnel junctions.
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Wu, Chen. "Elemental growth of oxide thin films." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:ac82a52f-bb62-41d0-a604-3cf7a95e5aaf.

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This thesis reports on the elemental growth of oxide thin films including TiOx, BaOx and BaxTiyOz by Ti/Ba deposition and oxidation. The films were grown on two different substrates, Au(111) and SrTiO₃(001), and studied using a variety of surface characterisation techniques. On the reconstructed Au(111) surface, three different TiOx structures were obtained with increasing Ti amounts deposited: a (2 × 2) Ti₂O₃ honeycomb structure, a pinwheel structure that is the result of a Moiré pattern, and a triangular island TiO1.30 structure. The structures arise from raised Ti coverages and have increased Ti densities. Although Ba deposited on the reconstructed Au(111) has a weak interaction with the substrate, the BaOx thin films can grow epitaxially and lift the Au(111) reconstruction. Two well-ordered phases, a (6 × 6) and a (2√3 × 2√3) BaOx structure, were obtained which may have octopolar-based surface structures. For Ba & Ti deposition on Au(111), a locally ordered (5 × 5) BaxTiyOz structure was observed in the sub-monolayer regime. What is more interesting is the possible formation of a BaO-TiO surface alloy with short-range ordering achieved by Ba deposition on the (2 × 2) Ti₂O₃-templated Au(111) surface. This is the first time that surface-alloying has been observed for oxides. When Ti is deposited onto the SrTiO₃(001) surface, it is incorporated into the substrate by forming a variety of Ti-rich SrTiO₃ surface reconstructions, such as c(4 × 2), (6 × 2), (9 × 2) and (√5 ×√5)-R26.6°. Ti deposition provides a completely different route to obtaining these reconstructions at much lower anneal temperatures than the previously reported preparation procedures involving sputtering and annealing the SrTiO₃ sample. Anatase islands with (1 × 3) and (1 × 5) periodicities were also formed by increasing the Ti deposition amount and post-annealing. Reconstructed SrTiO₃ substrate surface has a lattice that differs from the bulk crystal and affects the epitaxial growth of BaO, however, a locally ordered BaOx structure was observed on the sputtered substrate with a growth temperature of 300 °C. Depositing Ba & Ti on SrTiO₃(001) results in the formation of BaOx clusters and the Ti incorporation into the substrate, forming the familiar Ti-rich SrTiO₃ surface reconstructions.
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Hardie, Graham Lyall. "Techniques for enhancing the PLD growth of superconducting YBCO thin films." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96096.

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Thesis (MEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: High Temperature Superconductors (HTS) exhibit exceptional electrical properties that make them attractive candidates for numerous electronic devices and applications. However, constructing working devices can be challenging due to fabrication difficulties of these brittle ceramics. This thesis investigates new methods to make the fabrication of high quality YBa2Cu3O7 (YBCO) thin films easier and compatible with more materials. We present the development of a universal add-on method that can be used in situ to improve the quality of superconducting thin films deposited by Pulsed Laser deposition (PLD). We investigate the in situ application of electric fields and voltage biasing to improve the thin film growth. Considering various electrode configurations, we have developed a final electrode design that is stable and produces reproducible results. By introducing an insulated high voltage (HV) electrode into the chamber during deposition, the quality of the deposited thin films can be modulated depending on the polarity of the voltage applied. Applying a positive voltage improves the film quality obtained. Applying a negative voltage degrades the superconducting properties of the films. A simple proof-of-concept HTS dual-mode microwave filter was designed, fabricated and tested. Only the filter produced using our novel PLD technique displayed the correct filtering action upon cooling to 77K. This is attributed to the thin films better superconducting properties due to our developed technique.
AFRIKAANSE OPSOMMING: Hoë Temperatuur Supergeleiers (HTS) vertoon aantreklike elektriese eienskappe wat hulle goeie kandidate maak vir verskeie elektroniese toepassings. Om werkende toestelle te ontwikkel kan 'n uitdaging wees, as gevolg van die vervaardigings probleme wat bestaan vir hierdie bros keramiek materiaal. Hierdie tesis ondersoek nuwe metodes om die vervaardiging van 'n hoë gehalte YBa2Cu3O7 (YBCO) dun films makliker en versoenbaar te maak met verskeie materiale. Ons toon die ontwikkeling van 'n algemene metode wat maklik bygevoeg kan word om in situ die gehalte van supergeleidende dun films, wat deur gepulseerde laser deponering (PLD) gedeponeer is, te verbeter. Ons ondersoek die in situ toepassing van elektriese velde en spannings om die dun film groei te verbeter. Verder oorweeg ons verskeie elektrode konfigurasies en ontwikkel 'n finale elektrode ontwerp wat stabiel is en herhaalbare resultate produseer. Die kwaliteit van die gedeponeerde dun films kan gemoduleer word deur die byvoeging van 'n geïsoleerde hoogspannings (HV) elektrode tydens deponering, afhangende van die polariteit van die aangelegde spanning. 'n Positiewe spanning verhoog die film kwaliteit, terwyl 'n negatiewe spanning die supergeleidende eienskappe van die films verlaag. 'n Eenvoudige HTS dubbele-modus mikrogolffilter is ontwerp, vervaardig en getoets, om as toepassings voorbeeld te dien. Slegs die filter wat geproduseer was met behulp van ons nuwe PLD tegniek, vertoon die beste filter oordrag by 77K. Dit word toegeskryf aan die beter supergeleidende eienskappe van die dun film, as gevolg van die toepassing van ons ontwikkelde tegniek.
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Banchewski, Juri. "Transient Liquid Assisted Growth of YBCO Superconducting Films: Growth Kinetics, Physical Properties and Vortex Pinning." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/671035.

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Els superconductors d’alta temperatura (HTS) han liderat els programes d’investigació I desenvolupament durant tres dècades i actualment es troben a prop de ser integrats en aplicacions de gran escala, en forma de cintes superconductores (CCs), una arquitectura de cinta robusta i flexible que permet el creixement texturat d’aquest material fràgil. Un escull pendent per l’amplia implementació de les CCs és l’alt ratio de cost/prestació, essencialment controlat pel creixement complexa i descelerat de la capa de HTS. En aquesta tesis, vem agafar el repte de millorar el rendiment i cost dels mètodes de creixement convencionals a través del desenvolupament d’una nova tècnica de creixement que combina la deposició de solucions químiques (CSD), deposició del precursor inherentment de baix cost, amb l’alta velocitat de creixement, una aproximació de creixement de no equilibri que permet la formació d’una fase líquida transitòria (Ba-Cu-O) que condueix a la cristal·lització del producte final: Creixement Assistit per Líquid Transitori a través de CSD (TLAG-CSD). Hem utilitzat aquest procés nou per créixer capes primes de YBa2Cu3O7-d (YBCO), un material HTS basat en cuprats de inigualables prestacions sota camps magnètics aplicats i altes temperatures. Aquestes propietats tan impressionants sols es poden assolir si el compost, elèctricament anisotròpic, exhibeix una textura biaxial i conté suficients defectes per ancorar els vòrtexs, quantificacions de flux magnètic que necessiten ser immobilitzades per obtenir conducció de corrent elèctric sense pèrdues. Per tant, no tan sols pretenem la comprensió dels fonaments del procés TLAG-CSD, sinó també promoure formes de creixement epitaxial a grans velocitats, evitant les causes de degradació del corrent, i fomentant l’enriquiment d’un paisatge adequat per l’ancoratge de vòrtexs. Per afrontar aquests reptes, hem combinat varis mètodes avançats de caracterització: Hem realitzat experiments de creixement in-situ en una instal·lació de llum sincrotró per avaluar la cinètica de creixement a diferents pressions parcial i total d’oxigen, temperatura de creixement, rampa d’escalfament, gruix de la capa HTS i composició, així com l’addició de nanopartícules (NP). La combinació dels diferents experiments s’ha resumit satisfactòriament en els anomenats diagrames de fase cinètics, una representació visual dels processos fora de l’equilibri i un roadmap per la seva utilització. Les capes de YBCO epitaxial orientades segons l’eix c s’han estudiar minuciosament amb difracció de raigs-X, microscòpia electrònica de transmissió (TEM), experiments de transport elèctric a baixes temperatures i inducció magnètica per identificar les limitacions i oportunitats del procés. Això va incloure l’estudi de la microestructura del YBCO i les propietats elèctriques per evitar la reactivitat del líquid amb el substrat, la segregació de fases secundaries, a la vegada que asseguràvem l’eliminació del CO2 i el dopatge d’oxigen de l’estructura cristal·lina. Finalment, hem revelat que amb el mètode TLAG-CSD es poden assolir velocitats de creixement epitaxial per sobre de 100nm/s, sobrepassant dos ordres de magnitud les tècniques convencionals utilitzades en la fabricació de CC (TFA-CSD/PLD/MOCVD). Les capes superconductores van assolir un alineament epitaxial alt dels grans (Δω<0.6º i Δφ<1º), temperatures crítiques (Tc=88-92K) i densitats de corrent competitives (Jc(77K)=2-5MA/cm2). A més, classifiquem el procés TLAG-CSD com altament versàtil per enriquir el paisatge d’ancoratge de vòrtexs, no solament a través de la capacitat de promoure una alta densitat de faltes d’apilament i grans de YBCO orientats-ab molt petits (5-10nm) en les capes de YBCO, sinó per la seva compatibilitat per formar nanocompostos amb l’addició de nanopartícules preformades.
Los superconductores de alta temperatura (HTS) han liderado los programas de investigación y desarrollo durante tres décadas y actualmente se encuentran cerca de ser integrados, en aplicaciones de gran escala, en forma de cintas superconductoras (CCs), una arquitectura de cinta robusta y flexible que permite el crecimiento texturado de este material frágil. Un escollo pendiente para la amplia implementación de las CCs es el alto ratio de coste/prestación, esencialmente controlado por el crecimiento complejo y descelerado de la capa de HTS. En esta tesis, cogimos el reto de mejorar el rendimiento y coste de los métodos de crecimiento convencionales a través del desarrollo de una nueva técnica de crecimiento que combina la deposición de soluciones químicas (CSD), deposición del precursor inherentemente de bajo coste, con la alta velocidad de crecimiento, una aproximación de crecimiento de no equilibro que permite la formación de una fase líquida transitoria (Ba-Cu-O) que conduce a la cristalización del producto final: Crecimiento Asistido por Liquido Transitorio a través de CSD (TLAG-CSD). Hemos utilizado este proceso nuevo para crecer capas delgadas de YBa2Cu3O7-d (YBCO), un material HTS basado en cupratos de inigualables prestaciones bajo campos magnéticos aplicados y altas temperaturas. Estas propiedades tan impresionantes solo se pueden alcanzar si el compuesto, electrónicamente anisotrópico, exhibe una textura biaxial y contiene suficientes defectos para anclar a los vórtices. Por tanto, no solo pretendemos la comprensión de los fundamentos del proceso TLAG-CSD, sino también promover formas de crecimiento epitaxial a grandes velocidades, evitando las causas de degradación de la corriente, y fomentando el enriquecimiento de un paisaje adecuado para el anclaje de vórtices. Para afrontar estos retos, hemos combinado varios métodos avanzados de caracterización: Realizamos experimentos de crecimiento in-situ en una instalación de luz sincrotrón para evaluar la cinética de crecimiento a distintas presiones parcial y total de oxígeno, temperatura de crecimiento, rampa de calentamiento, grosor de la capa HTS y composición, así como la adición de nanopartículas (NP). La combinación de los distintos experimentos se ha resumido satisfactoriamente en los llamados diagramas de fase cinéticos, una representación visual de los procesos fuera del equilibrio y un roadmap para su utilización. Las capas de YBCO epitaxiales orientadas según el eje c se estudiaron minuciosamente con difracción de rayos-X, microscopía electrónica de transmisión (TEM), experimentos de transporte eléctrico a bajas temperaturas e inducción magnética para identificar las limitaciones y oportunidades del proceso. Ello incluyó estudiar la microstructura del YBCO y las propiedades eléctricas para evitar la reactividad del líquido con el sustrato, la segregación de fases secundarias, a la vez que asegurar la eliminación de CO2 y el dopaje de oxígeno de la estructura cristalina. Revelamos que con el método TLAG-CSD se pueden alcanzar velocidades de crecimiento epitaxial por encima de 100nm/s, sobrepasando dos órdenes de magnitud las técnicas convencionales utilizadas en la fabricación de CC (TFA-CSD/PLD/MOCVD). Las capas superconductoras alcanzaron un alineamiento epitaxial alto de los granos (Δω<0.6º y Δφ<1º), temperaturas críticas (Tc=88-92K) y densidades de corriente crítica competitivas (Jc(77K)=2-5MA/cm2). Además, clasificamos al proceso TLAG-CSD como altamente versátil para enriquecer el paisaje de anclaje de vórtices, no solo a través de la capacidad de promover una alta densidad de faltas de apilamiento y granos de YBCO orientados-ab muy pequeños (5-10nm) en las capas de YBCO, sino por su compatibilidad para formar nanocompuestos con la adición de nanopartículas preformadas.
High temperature superconductors (HTS) have been driving research and development programs for about three decades now and are on the verge of entering large scale utilization in the form of Coated Conductors (CCs), a robust and flexible tape architecture that enables textured growth of the rather brittle material class. A remaining bottleneck for widespread CC implementation is the high cost/performance ratio, essentially controlled by the complex and decelerating step of HTS layer growth. In this thesis we challenge the throughput and cost constraints of conventional growth methods through development of a novel growth technique that combines Chemical Solution Deposition (CSD), an inherently low-cost precursor deposition approach, with a high growth rate, non-equilibrium growth scheme that allows the formation of a transient (Ba-Cu-O) liquid phase prior to crystallization of the final product phase: Transient Liquid-Assisted Growth via CSD (TLAG-CSD). We employed the new process to grow YBa2Cu3O7-d (YBCO) thin films, a cuprate-based HTS material with unmatched current carrying performance in applied magnetic field conditions and at high temperatures. The unprecedented properties can only be reached if the electrically anisotropic compound exhibits biaxial texture and provides sufficient nanometric defects to pin vortices. Hence, not only is the fundamental understanding of the TLAG-CSD process required but also ways to promote epitaxial growth at high rates, avoidance of any current-degrading sources and strategies to enrich the pinning landscape. To tackle these challenges, we combined several advanced characterization methods: In-situ growth experiments at a synchrotron facility were carried out to follow growth kinetics under variation of total and oxygen partial pressures, growth temperatures, heating ramps, film thickness/composition and nanoparticle (NP) addition. The combined set of experiments was successfully summarized in the form of so-called kinetic phase diagrams, a visual representation of the out-of-equilibrium processes and a roadmap for its utilization. Epitaxial, c-axis oriented YBCO films were thoroughly studied via X-ray diffraction, transmission electron microscopy (TEM), low temperature electrical transport and inductive measurements to identify process related limitations and opportunities. This includes probing of the YBCO microstructuture and intrinsic electrical properties to avoid liquid induced substrate reactivity, segregation of secondary phases, while enabling proper CO2 elimination and oxygen doping of the crystal structure. We disclose that epitaxial layer growth rates above 100nm/s can be accomplished through the TLAG-CSD approach, surpassing conventional techniques used in CC manufacturing schemes (TFA-CSD/PLD/MOCVD) by up to two orders of magnitude. Superconducting films are demonstrated to reach high epitaxial grain alignment (Δω<0.6º and Δφ<1º), optimal critical temperatures (Tc=88-92K) and competitive critical current densities (Jc(77K)=2-5MA/cm2). We further classify the TLAG-CSD process as highly versatile in enriching the vortex pinning landscape, not only through its capability to promote a high density of stacking faults and small ab-oriented YBCO grains (5-10nm) in pristine YBCO films, but also through its compatibility with preformed nanoparticle addition in nanocomposites.
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36

Wen, Xuejun. "DIRECT DEPOSITION OF C-AXIS TEXTURED HIGH-TC YBCO SUPERCONDUCTING THICK FILMS UNORIENTED METALLIC SUBSTRATES." University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin971281869.

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37

Manzoor, Tahir. "Ellipsometric studies of the nucleation and growth of thin films in ultra high vacuum." Thesis, Queen's University Belfast, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335428.

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38

Unal, Serkan. "Synthesis and Characterization of Branched Macromolecules for High Performance Elastomers, Fibers, and Films." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/29783.

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An A2 + B3 polymerization for the synthesis of hyperbranched polymers was altered using oligomeric precursors in place of either one or both of the monomer pairs to synthesize highly branched macromolecules. Unique topologies that are intermediates between long-chain branched and hyperbranched structures were obtained and the term "highly branched" was used to define these novel architectures. Various types of highly branched polymers, such as polyurethanes, poly(urethane urea)s, poly(ether ester)s, and poly(arylene ether)s were synthesized using the oligomeric A2 + B3 strategy. The molar mass of the oligomeric precursor permitted the control of the molar mass between branch points, which led to interesting macromolecular properties, such as superior mechanical performance to conventional hyperbranched polymers, disrupted crystallinity, improved processibility, and a multitude of functional end groups. Highly branched poly(urethane urea)s and polyurethanes exhibited microphase-separated morphologies as denoted by dynamic mechanical analysis. The similarity in soft segment glass transition behavior and mechanical properties of the branched systems with that of the linear analogues suggested these materials have considerable promise for a variety of applications. When a polycaprolactone triol was utilized as the B3 oligomer for the synthesis of highly branched polyurethane elastomers, the high degree of branching resulted in a completely amorphous soft segment, whereas the linear analogue with equivalent soft segment molar mass retained the crystallinity of polycaprolactone segment. Oligomeric A2 + B3 methodology was further utilized to tailor the degree of branching of poly(ether ester)s that were developed based on slow addition of dilute solution of poly(ethylene glycol) (PEG) (A2) to a dilute solution of 1,3,5-benzenetricarbonyl trichloride (B3) at room temperature in the presence of triethylamine. A revised definition of the degree of branching was proposed to accurately describe the branched poly(ether ester)s and the degree of branching decreased as the molar mass of the PEG diols was increased. Moreover, branched poly(arylene ether)s were prepared via a similar oligomeric A2 + B3 polymerization of phenol endcapped telechelic poly(arylene ether sulfone) oligomers (A2) and tris(4-fluorophenyl) phosphine oxide (B3) in solution. Highly branched poly(ether ester)s were also synthesized in the melt phase using the oligomeric A2 + B3 polymerization strategy. Melt polymerization effectively limited the cyclization reactions, which are common in A2 + B3 polymerizations in solution, and overcame the need for large amounts of polymerization solvent typical of A2 + B3 systems. Finally, a new family of telechelic polyester ionomers was synthesized based on phosphonium bromide salt end groups and branching allowed the incorporation of higher levels of ionic end groups compared to linear analogues.
Ph. D.
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39

Woods, Vincent Timothy. "High Pressure Chemical Vapor Deposition: A Novel Approach for the Growth of InN." unrestricted, 2006. http://etd.gsu.edu/theses/available/etd-05052006-121052/.

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Thesis (Ph. D.)--Georgia State University, 2006.
Title from title screen. Nikolaus Dietz, committee chair; Brian Thoms, Mark Stockman, Vadym Apalkov, Douglas Gies, committee members. Electronic text (167 p. : ill. (some col.)). Description based on contents viewed Apr. 24, 2007. Includes bibliographical references (p. 162-167).
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40

Lu, Q. "Growth, dielectrics properties, and reliability of high-k thin films grown on Si and Ge substrates." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3013042/.

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41

Farnan, Gareth A. "The growth and infrared response of YBa←2Cu←3O←7←-←#delta# thin films." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326400.

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42

McCurry, Martin Peter. "The growth and characterisation of YBa←2Cu←3O←7←-←#←d←e←l←t←a←# superconducting thin films." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287446.

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43

Palai, Ratnakar. "Growth, optimisation and characterisation of pulsed laser deposited Nd-based high temperature superconducting thin films for device applications." Thesis, University of Strathclyde, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405145.

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44

Ichino, Yusuke, Yutaka Yoshida, Kouichi Inoue, Toshinori Ozaki, Yoshiaki Takai, Kaname Matsumoto, Masashi Mukaida, Ryusuke Kita, Ataru Ichinose, and Shigeru Horii. "Effect of BaZrO3 Addition and Film Growth on Superconducting Properties of (Nd,Eu,Gd)Ba2Cu3Oy Thin Films." IEEE, 2009. http://hdl.handle.net/2237/13894.

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45

Zaheer, Safwan. "A study of the correlation between pre-IPO venture funds and founder characteristics with high-tech firm growth." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/47874.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2008.
Includes bibliographical references (leaves 57-58).
High-tech firms are among the fastest growing in the United States. The four industries with the most rapid growth -internet, software, semiconductors, and technology hardware - have almost doubled their share of industry output in the United States over the last decade. These firms are not only an important stimulus to the national economy but also have spawned new industries and spearheaded the development of innovative products and services. It is for these reasons that these firms are of particular interests to managers, investors, and academics. By examining these firms, researchers can help managers, investors, and academics better understand the attributes associated with firm growth. The purpose of this study was to determine whether any correlations existed between the size of the pre-IPO (initial public offering) venture fund and founder characteristics with firm growth. Twenty different high-tech firms were studied. These firms were divided into two different samples. One sample consisted of 10 firms that went public well before the 2000 recession and the other sample consisted of 10 firms that went public close to the 2000 recession. A 5 year time period beyond an IPO was used for calculating the firm's average growth rate. The results showed a negative correlation between the size of the pre-IPO venture funds and firm growth. No significant correlation between founder age and prior entrepreneurial experience of the founder with firm growth was found.
(cont.) As far as the prior relevant industry experience of the founder is concerned, an average experience of 6+ years was found to be positively correlated with firm growth. Even though, no correlation was found between founder education and firm growth; founders having a masters or a PhD degree outperformed those with a bachelor's or even a high-school degree. The results serve to provide contextual information to managers, investors, and academics who wish to consider their firm's growth potential or in general invest in high-tech firms. In addition, the study adds to the rich literature on the impact of pre-IPO venture funds and founder characteristics on firm success.
by Safwan Zaheer.
S.M.
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46

Sipola, S. (Sakari). "Understanding growth and non-growth in entrepreneurial economies:analysis of startup industries and experimental winner generation in Finland, Israel and Silicon Valley." Doctoral thesis, Oulun yliopisto, 2015. http://urn.fi/urn:isbn:9789526208138.

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Abstract The importance of high-growth firms for job creation is widely acknowledged and the promotion of such firms is a key area of industry policy in developed countries. However, despite the substantial development of firm growth research and the significant public investments, in many geographies the assumed good preconditions for high-growth entrepreneurship are not producing the desired results. The purpose of this study is to increase understanding of the emergence of high-growth startups by taking a systemic view of firm growth. Instead of examining individual firms, a high-growth startup focused systemic economic actor, defined as the startup industry, is taken as the research object. The startup industry is given a certain function in economic development and resource allocation, and its processual activity in particular contexts is examined under the experimental winner generation process. Critical realism is used for systemic reasoning of firm growth. The empirical study focuses on case startup industries of Finland, Israel and Silicon Valley. The emergence of startup-related actor structures and institutions, and their functioning is analyzed first from a cultural-historical and processual perspective. Second, the organization of the experimental winner generation process and its outcomes for each case are analyzed over a period of several decades, and a cross-case comparison is conducted between the cases. The results of the study propose that each startup industry develops in time a particular target for its activities. This target, defined as the perceived winner, is the key for alignment and functioning of the startup industry as a whole. Examination of this concept enables us to understand the logics of the firm growth at the wider system level and on that basis to suggest some key determinants of the performance of startup industries in the long run. The discussion of policy maker implications concludes the study
Tiivistelmä Kasvuyritykset ovat tärkeitä uusien työpaikkojen synnyttäjiä, ja teollistuneissa maissa niiden tukeminen on teollisuuspolitiikan keskiössä. Huolimatta laajasta yritysten kasvun tutkimustiedosta, merkittävistä julkisista investoinneista ja oletetuista hyvistä lähtökohdista kasvuyrittäjyydelle ei monella maantieteellisellä alueella kuitenkaan synny panostukseen verrattuna tarpeeksi kasvuyrityksiä. Tämä väitöskirja tutkii nopeasti kasvavien startup-yritysten syntymistä systeemisestä näkökulmasta. Yksittäisten yritysten sijaan tutkimuksessa määritellään tutkimuskohteeksi startup-teollisuus, kasvuhakuisiin startup-yrityksiin keskittyvä systeeminen talouden toimija, jolle annetaan tietty tehtävä talouden kehityksessä ja resurssiallokaatiossa. Startup-teollisuuden toimintaa eri konteksteissa tarkastellaan kokeellisen voittajayritysten rakentamisen prosessin avulla. Yritysten kasvua lähestytään lisäksi kriittisen realismin mukaisen kausaliteetin pohjalta. Tutkimuksen empiirinen osuus on toteutettu tapaustutkimuksena, jossa analysoidaan Suomen, Israelin ja Piilaakson startup-teollisuutta. Tutkimuskohteiden startup-yrityksiin liittyvien toimijarakenteiden ja instituutioiden kehitystä ja toimintaa analysoidaan kulttuuri-historiallisesta ja prosessuaalisesta näkökulmasta. Lisäksi kokeellisen voittajayritysten rakentamisen prosessin organisointia ja lopputuloksia analysoidaan usean vuosikymmenen ajalta sekä tapauskohtaisesti että niiden välillä. Tutkimustulokset esittävät kunkin startup-teollisuuden kehittävän ajan myötä tietyn kohteen omalle toiminnalleen. Tämä kohde, näkemys voittavasta startup-yrityksestä, linjaa koko startup-teollisuuden toimintaa. Tutkimalla tätä näkemystä voimme ymmärtää yritysten kasvun logiikoita systeemisellä tasolla, mikä mahdollistaa startup-teollisuuksien välisten rakenteellisten- ja suorituskykyerojen ymmärtämisen pitkällä aikavälillä. Tutkimuksen lopussa esitetään johtopäätöksiä poliittisen päätöksenteon kannalta
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47

Hamilton, Gabriella. "High risk, high reward? : -A quantitative study of venture capital investments effect on new business creation." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264228.

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In this thesis, an econometric analysis has been conducted in order to research the rate of new business creation that venture capital investments potentially generate. Data was gathered from 32 OECD countries between the years 2006-2017, to establish to what degree TEA (total entrepreneurial activity) and TEA opportunity based, was fuelled by venture capital investments. In comparison to the majority of the literature, the findings of this thesis give a more nuanced picture to the enthusiastic attitude towards venture capital. As the results indicate a less significant impact of venture capital investments than expected, this thesis serves as an important counterweight to the overall positive stance towards the finance form. However, other findings of the study are in line with previous literature. For example, high GDP is associated to high entrepreneurial activity and high taxes discourage entrepreneurial activity. It is also worth mentioning the subtle, but existing, disparity in the results between TEA and TEA opportunity based. This indicates that further and more thorough research should be conducted within these two different measurements.
I den här uppsatsen har en ekonometrisk analys genomförts i syfte att undersöka venture capitals påverkan på graden av uppkomsten av nya företag. Data samlades in från 32 OECD länder mellan åren 2006-2017, för att ta reda på hur TEA (total entrepreneurial activity) och TEA opportunity based påverkas av venture capital investeringar. I jämförelse med majoriteten av existerande litteratur, så ger resultaten av den här uppsatsen en mer nyanserad bild den rådande entusiastiska attityden gentemot venture capital. Då resultaten indikerar en mindre signifikant påverkan av venture capital investeringar än förväntat, bidrar den här uppsatsen till en viktig motpol till en gällande positiva inställningen till finansieringsformen. Dock stämmer andra resultat från uppsatsen överens med tidigare litteratur. Exempelvis är högt BNP signifikant med hög entreprenöriell aktivitet och höga skatter visar sig ha en avskräckande effekt. En annan intressant iakttagelse utifrån resultaten, är den subtila, men existerande skillnaden mellan TEA och TEA opportunity based. De indikerar att vidare och mer djupgående forskning bör göras på de två olika variablerna.
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48

Xu, Yongli. "High Jc Epitaxial YBa2Cu3O7-δ Films Through a Non-Fluorine Approach for Coated Conductor Applications." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1075992286.

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49

Bishara, Mina. "The relative contribution of financial and non-financial determinants to firm growth under high and low levels of information asymmetry." Thesis, Coventry University, 2017. http://curve.coventry.ac.uk/open/items/54160d18-a5c5-4308-b329-7309ff092bb3/1.

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Various financial decisions contribute to the success of firms including investment decisions, dividend policy and financing decisions (capital structure). Nevertheless, other variables such as the industry in which the firm operates, size of the firm and ownership structure can also play an important role in increasing overall corporate performance. Extant research utilises a number of proxies for estimating corporate success, including profitability, size, employment, to name a few. This thesis focuses on one of the most important drivers of corporate success - firm growth. Arguably, growth is an ultimate goal for all companies as it benefits all stakeholders. In this study, firm growth is proxied using the growth-in-sales indicator. The financial and non-financial variables mentioned above can, in various circumstances, contribute or hinder firm growth. The three main corporate decisions (investment, dividends and financing), as reflected by the aforementioned financial measures, can contribute or hinder firm’s growth as there is almost always a trade-off amongst them, owing to their complex inter-relationships. Similarly, a non-financial determinant such as ownership structure can contribute to firm growth. A major factor that affects these relationships is the presence of information asymmetry. The latter is considered as a mediator as it could explain the relationship between financial, non-financial decisions and firm growth. Information asymmetry is measured in this thesis using three proxies to distinguish between high- and low-levels of information asymmetry, namely Sensitivity of stock returns to expected Return on Equity (Beta ROE), Probability of default of Return on Equity (PD ROE), and the Q Ratio. This thesis contributes to the literature of corporate finance by examining the relative contribution of financial and non-financial variables to firm’s growth.
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50

Iskandar, Mohamad Riza [Verfasser]. "Growth mechanisms and microstructure evolution of MAX phases thin films and of oxide scales on high temperature materials / Mohamad Riza Iskandar." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1021567930/34.

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