Academic literature on the topic 'Informational Efficiency'

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Journal articles on the topic "Informational Efficiency"

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Palomino, Frederic. "Informational efficiency: ranking markets." Economic Theory 18, no. 3 (November 2001): 683–700. http://dx.doi.org/10.1007/pl00004206.

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Hoffer, George E., Stephen W. Pruitt, and Robert J. Reilly. "AUTOMOTIVE RECALLS AND INFORMATIONAL EFFICIENCY." Financial Review 22, no. 4 (November 1987): 433–42. http://dx.doi.org/10.1111/j.1540-6288.1987.tb01265.x.

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LATHAM, MARK. "Informational Efficiency and Information Subsets." Journal of Finance 41, no. 1 (March 1986): 39–52. http://dx.doi.org/10.1111/j.1540-6261.1986.tb04490.x.

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Condie, Scott, and Jayant V. Ganguli. "Informational efficiency with ambiguous information." Economic Theory 48, no. 2-3 (June 26, 2011): 229–42. http://dx.doi.org/10.1007/s00199-011-0646-2.

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Chen, Tao. "Informational Efficiency: Which Institutions Matter?" Asia-Pacific Financial Markets 16, no. 2 (May 17, 2009): 141–68. http://dx.doi.org/10.1007/s10690-009-9090-8.

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DÁVILA, EDUARDO, and CECILIA PARLATORE. "Trading Costs and Informational Efficiency." Journal of Finance 76, no. 3 (March 9, 2021): 1471–539. http://dx.doi.org/10.1111/jofi.13008.

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Hesarzadeh, Reza, and Javad Rajabalizadeh. "The impact of corporate reporting readability on informational efficiency." Asian Review of Accounting 27, no. 4 (December 2, 2019): 489–507. http://dx.doi.org/10.1108/ara-11-2018-0203.

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Purpose Informational efficiency is a fundamental aspect of capital market quality, and therefore, regulators, managers and practitioners attempt to find ways to improve the informational efficiency. Since prior studies primarily focus on the numerical attributes of corporate reporting, it is not yet adequately known whether or not the linguistic attributes of corporate reporting affect informational efficiency. Thus, the purpose of this paper is to examine whether corporate reporting readability (readability), as an important linguistic attribute of corporate reporting, affects informational efficiency. Design/methodology/approach To measure readability, this paper uses Fog index. Moreover, to measure informational efficiency, the paper uses stock return variance ratios. Findings The findings reveal a positive and significant association between readability and informational efficiency. Moreover, the findings show that the association of readability and informational efficiency is stronger for firms facing higher information asymmetry. The findings further document the spillover effect of readability, in the sense that the readability of economically related public firms affects a firm’s informational efficiency. Overall, the results support the arguments that readability enhances informational efficiency. Originality/value This study contributes to the literature by providing evidence on the internalities and externalities of readability in the context of informational efficiency. Thus, the study will be of interest to regulators, managers and practitioners, especially in emerging capital markets, who tend to find practical and easy ways to improve informational efficiency.
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Serletis, Apostolos, and David Scowcroft. "Informational efficiency of commodity futures prices." Applied Financial Economics 1, no. 4 (December 1991): 185–92. http://dx.doi.org/10.1080/758522002.

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Hodgkinson, Lynn. "Informational efficiency of European equity markets." Applied Financial Economics 1, no. 2 (June 1991): 79–83. http://dx.doi.org/10.1080/758531063.

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SKINNER, DOUGLAS J. "Do Options Markets Improve Informational Efficiency?" Contemporary Accounting Research 14, no. 2 (June 1997): 193–201. http://dx.doi.org/10.1111/j.1911-3846.1997.tb00532.x.

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Dissertations / Theses on the topic "Informational Efficiency"

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Ma, Shiguang. "Tests of informational efficiency of China's stock market /." Title page, contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09PH/09phm111.pdf.

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Viteva, Svetlana. "The informational efficiency of the European carbon market." Thesis, University of Stirling, 2012. http://hdl.handle.net/1893/11204.

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This thesis examines the informational efficiency of the European carbon market based on the European Union Emissions Trading Scheme (EU ETS). The issue is approached from three different perspectives. I explore whether the volatility embedded in carbon options is a rational forecast of subsequently realized volatility. Then, I investigate if, and to what extent, new information about the structural and institutional set-up of the market impacts the carbon price dynamics. Lastly, I examine whether the European carbon market is relevant for the firm valuations of covered companies. First, perhaps because the market is new and derivatives’ trading on emission allowances has only started recently, carbon options have not yet been extensively studied. By using data on options traded on the European Climate Exchange, this thesis examines an aspect of market efficiency which has been previously overlooked. Market efficiency suggests that, conditional upon the accuracy of the option pricing model, implied volatility should be an unbiased and efficient forecast of future realized volatility (Campbell et al., 1997). Black (1976) implied volatility and implied volatility estimates directly surveyed from market participants are used in this thesis to study the information content of carbon options. Implied volatility is found to be highly informative and directionally accurate in forecasting future volatility. There is no evidence, however, that volatility embedded in carbon options is an unbiased and efficient forecast of future realized volatility. Instead, historical volatility-based forecasts are shown to contain incremental information to implied volatility, particularly for short-term forecasts. In addition, this thesis finds no evidence that directly surveyed implied volatility estimates perform better as a forecast of future volatility relative to Black’s (1976) estimates. Second, the market sensitivity to announcements about the organizational and institutional set-up of the EU ETS is re-examined. Despite their importance for the carbon price formation, demand-side announcements and announcements about the post-2012 framework have not yet been researched. By examining a very comprehensive and updated dataset of announcements, this thesis adds to the earlier works of Miclaus et al. (2008), Mansanet-Bataller and Pardo (2009) and Lepone et al. (2011). Market participants are found to rationally incorporate new information about the institutional and regulatory framework of the emissions trading scheme into the carbon price dynamics. However, they seem to be unable to accurately assess the implications of inter-temporal banking and borrowing on pricing futures contracts with different maturities. The impact of macroeconomic conditions on the market responsiveness is investigated by splitting the dataset into subsamples according to two alternative methods: 1) a simple split into pre-crisis and full-crisis time periods, and 2) according to a Bai-Perron structural break test. Evidence is found that in the context of economic slowdown and known allowances oversupply, the relationship between the carbon price and its fundamentals (institutional announcements, energy prices and extreme weather) breaks down. These findings are consistent with the arguments in Hintermann (2010), Keppler and Mansanet-Bataller (2010) and Koop and Tole (2011) that carbon price drivers change in response to the differing context of the individual trading periods. Third, the role of carbon performance in firm valuation is understudied. Since companies were not obliged to disclose their carbon emissions prior to the launch of the EU ETS, there exists little empirical evidence of the effect of carbon performance on market value. Earlier studies of the European carbon market have only focused on the impact of ETS compliance on the profitability and competitiveness of covered companies (e.g. Anger and Oberndorfer, 2008). There is also little research on how the newly available emissions data has altered the carbon performance of companies. This thesis addresses these gaps in the literature by examining the stock price reactions of British and German firms on the day of verified emissions release under the EU ETS over the period 2006 – 2011. An event study is conducted using a Seemingly Unrelated Regressions model to deal with the event clustering present in the dataset. Limited evidence is found that investors use information about the carbon performance of companies in their valuations. The information contained in the carbon emissions reports is shown to be somewhat more important for companies with high carbon-intensive operations. This thesis finds no conclusive evidence that the cap-and-trade programme has been able to provide regulated companies with enough incentives to de-carbonize their operations. The market does not punish companies which continue to emit carbon at increasing rates or reward companies which improve their carbon performance. In brief, the results of the thesis suggest that the market is not fully efficient yet. Inefficiently priced carbon options may allow for arbitrage trades in the market. The inability of investors to incorporate rules on inter-temporal banking and borrowing of allowances across the different trading periods leads to significant price reactions when there should be none. A recessionary economic environment and a known oversupply of emission allowances have led to a disconnect between the carbon price and its fundamental drivers. And, lastly, the signal embedded in the carbon price is not strong enough to invoke investor action and turn carbon performance into a standard component of investment analysis.
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Bonnier, Jean-Baptiste. "Essays on commodity prices modelling and informational efficiency." Thesis, Nantes, 2021. http://www.theses.fr/2021NANT3001.

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Les commodités jouent un rôle essentiel dans nos économies, et les marchés à terme occupent une place centrale dans la détermination de leur prix. L'objet de cette thèse est de participer à notre compréhension du comportement des prix des commodités, et de produire des prévisions sur la base de méthodes économétriques récentes. Pour la prévision, nous nous concentrons sur deux sujets différents pour trois commodités (le pétrole, le blé, et l'or): la prévision des prix à horizon mensuel à partir d'une grande base de données, et la prévision de la volatilité à horizon journalier à l'aide d'une procédure récente de sélection de variables pour la volatilité conditionnelle. Pour l’explication, nous nous intéressons à l’efficience informationnelle et à la découverte de l’information dans deux cadres différents : des régressions prédictives s’appuyant sur des données relatives à différentes théories, et une analyse de l’effet des changements des positions ouvertes de différents groupes de traders sur la volatilité
Commodities play an essential role in our economies, and futures markets are central in the determination of commodity prices. This thesis aims to participate to the understanding of the behaviour of commodity prices and to produce forecasts based on recently developed methods. With regards to forecasting, we focus on two different topics for three commodities (Crude oil, Wheat, and Gold): point forecasts at a one-month horizon from a large set of predictors, and one-day ahead volatility forecasts using covariates in a recent model selection method for conditional volatility. With regards to explanation, we are interested in informational efficiency and price discovery in two distinct frameworks: predictive regressions using data that pertain to different theories, and an analysis of the effect of changes in traders' positions on the volatility
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Silva, Paulo Miguel Pereira da. "Essays on the informational efficiency of credit default swaps." Doctoral thesis, Universidade de Évora, 2017. http://hdl.handle.net/10174/21092.

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This thesis contributes to the strand of the financial literature on credit derivatives, in particular the credit default swaps (CDS) market. We present four inter-connected studies addressing CDS market efficiency, price discovery, informed trading and the systemic nature of the CDS market. The first study explores a specific channel through which informed traders express their views on the CDS market: mergers and acquisitions (M&A) and divestitures activities. We show that information obtained by major banks while providing these investment services is impounded by CDS rates prior to the operation announcement. The run-up to M&A announcements is characterized by greater predictability of stock returns using past CDS spread data. The second study evaluates the incremental information value of CDS open interest relative to CDS spreads using a large panel database of obligors. We find that open interest helps predict CDS rate changes and stock returns. Positive open interest growth precedes the announcement of negative earnings surprises, consistent with the notion that its predictive ability is linked to the disclosure of material information. The third study measures the impact on CDS market quality of the ban on uncovered sovereign CDS buying imposed by the European Union. Using panel data models and a difference-in-differences analysis, we find that the ban helped stabilize CDS market volatility, but was in general detrimental to overall market quality. Lastly, we investigate the determinants of open interest dynamics to uncover the channels through which CDS may endanger the financial system. Although we find information asymmetry and divergence of opinions on firms’ future performance as relevant drivers of open interest, our results indicate that systematic factors play a much greater influence. The growth of open interest for different obligors co-varies in time and is pro-cyclical. Funding costs and counterparty risk also reduce dealers’ willingness to incur inventory risk; Eficiência dos mercados de Credit Default Swaps Resumo: Esta tese investiga o mercado de derivados de crédito, e em particular o mercado de credit default swaps (CDS). São apresentados quatro estudos interligados abordando temáticas relacionadas com a eficiência informacional, a existência de negociação informada no mercado de CDS, e a natureza sistémica daquele mercado. O primeiro estudo analisa a existência de negociação informada no mercado de CDS antes de operações de aquisição, fusões ou venda de ativos relevantes. A nossa análise mostra uma reação dos prémios de CDS antes do anúncio daqueles eventos, sendo em alguns casos mais imediata do que a reação dos mercados acionistas. O segundo estudo avalia o conteúdo informativo das posições em aberto no mercado de CDS utilizando dados em painel de diferentes empresas ao longo do tempo. Os resultados indiciam que as posições em aberto podem ajudar a prever variações futuras dos prémios de CDS e retornos acionistas. Em acréscimo, verifica-se um aumento estatisticamente significativo das posições em aberto antes da divulgação de surpresas negativas nos resultados das empresas. O terceiro estudo mede os efeitos da proibição de posições longas em CDS sobre entidades soberanas pertencentes ao Espaço Único Europeu sem a detenção do ativo subjacente pelo comprador. A análise mostra um efeito negativo da proibição sobre a qualidade do mercado, pese embora se tenha assistido em simultâneo à redução da volatilidade. Por fim, são analisados os determinantes dos montantes associados a posições em aberto, com o intuito de compreender como o mercado de CDS pode influenciar o risco sistémico. Os resultados indicam que a assimetria de informação e a divergência de opiniões dos investidores influenciam aqueles montantes. Todavia, fatores sistemáticos como risco de contraparte, aversão ao risco e risco de re-financiamento parecem ser ainda mais relevantes por via do efeito que exercem no risco do balanço dos intermediários financeiros.
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Clark, Stephen Rhett. "Essays in insider trading, informational efficiency, and asset pricing." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1306.

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In this dissertation, I consider a range of topics related to the role played by information in modern asset pricing theory. The primary research focus is twofold. First, I synthesize existing research in insider trading and seek to stimulate an expansion of the literature at the intersection of work in the insider trading and financial economics areas. Second, I present the case for using Peter Bossaerts's (2004) Efficiently Learning Markets (ELM) methodology to empirically test asset pricing models. The first chapter traces the development of domestic and international insider trading regulations and explores the legal issues surrounding the proprietary nature of information in financial markets. I argue that, practically, the reinvigoration of the insider trading debate is unfortunate because, in spite of seemingly unending efforts to settle the debate, we are no closer to answering whether insider trading is even harmful, much less worthy of legal action. In doing so, I challenge the conventional wisdom of framing insider trading research as a quest for resolution to the debate. By adopting an agnostic perspective on the desirability of insider trading regulations, I am able to clearly identify nine issues in this area that are fruitful topics for future research. The second chapter studies prices and returns for movie-specific Arrow-Debreu securities traded on the Iowa Electronic Markets. The payoffs to these securities are based on the movies' initial 4-week U.S. box office receipts. We employ a unique data set for which we have traders' pre-opening forecasts to provide the first direct test of Bossaerts's (2004) ELM hypothesis. We supplement the forecasts with estimated convergence rates to examine whether the prior forecast errors affect market price convergence. Our results support the ELM hypothesis. While significant deviations between initial forecasts and actual box-office outcomes exist, prices nonetheless evolve in accordance with efficient updating. Further, convergence rates appear independent of both the average initial forecast error and the level of disagreement in forecasts. Lastly, the third chapter revisits the theoretical justifications for Bossaerts's (2004) ELM, with the goal of providing clear, intuitive proofs of the key results underlying the methodology. The seemingly biggest hurdle to garnering more widespread adoption of the ELM methodology is the confusion that surrounds the use of weighted modified returns when testing for rational asset pricing restrictions. I attack this hurdle by offering a transparent justification for this approach. I then establish how and why Bossaerts's results extend from the case of digital options to the more practically relevant class of all limited-liability securities, including equities. I conclude by showing that the ELM restrictions naturally lend themselves to estimation and testing of asset pricing models, using weighted modified returns, in a Generalized Method of Moments (GMM) framework.
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Herath, Shanaka, and Gunther Maier. "Informational efficiency of the real estate market: A meta-analysis." Hanyang Economic Research Institute, 2015. http://dx.doi.org/10.17256/jer.2015.20.2.001.

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The growing empirical literature testing informational efficiency of real estate markets uses data from various contexts and at different levels of aggregation. The results of these studies are mixed. We use a distinctive meta-analysis to examine whether some of these study characteristics and contexts lead to a significantly higher chance for identification of an efficient real estate market. The results generated through meta-regression suggest that use of stock market data and individual level data, rather than aggregate data, significantly improves the probability of a study concluding efficiency. Additionally, the findings neither provide support for the suspicion that the view of market efficiency has significantly changed over the years nor do they indicate a publication bias resulting from such a view. The statistical insignificance of other study characteristics suggests that the outcome concerning efficiency is a context-specific random manifestation for the most part. (authors' abstract)
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Arjoon, Vaalmikki. "Essays on the informational efficiency of an emerging equity market." Thesis, University of Nottingham, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.582008.

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This doctoral thesis consists of three essays on the nature and evolution of informational efficiency in an emerging market context. Each essay uses firm and aggregate level data from an emerging market, namely the Trinidad and Tobago Stock Exchange (TISE). The first essay explores the state of informational efficiency in an emerging market setting and how this efficiency evolves over time. It addresses a key issue in the emerging markets informational efficiency literature: informational efficiency is not a static feature of markets but evolves over time with changes in market features and the investor behaviour. The analysis initially applies a battery of econometric tests of the random walk (variance ratio and signed-rank tests) to the full sample returns of aggregate and stock level data from the TISE, to determine whether the market is informational efficient. The findings show that the market is informationally inefficient at the aggregate level, which is accounted for by the severe lack of efficiency in the bulk of stocks traded on the exchange. This result could imply that by and large, stock prices in an emerging market setting may not be accurate signals for resource allocation. The next part of the analysis considers whether this state of informational efficiency varies over time, by applying the more robust signed-rank test in a rolling sub-sample framework to the stock and aggregate level data. The analysis shows that over time, there are transient periods of informational efficiency, which alternate with periods of inefficiency at the aggregate market level. This pattern of time-varying efficiency is largely mirrored by the Banking stocks of the TISE. Such results could mean that informational efficiency in an emerging market setting may improve in some periods but worsen in others. This does not conform to the classical Efficient Markets Hypothesis, which claims that markets should show a clear trend toward higher states of efficiency over time. The second essay analyses the effects of several market microstructures and financial reforms on time-varying informational efficiency in an emerging market setting. It uses data from the TISE, which is measured at the firm level for the microstructure variables. This allows for the analysis to extract the precise effects of microstructures on efficiency, which may otherwise be hidden by aggregate level data. The analysis is done within a panel regression framework. We find that improvements in the microstructure variables, including liquidity, volatility, automation and the number of shareholders enhance informational efficiency over time. However, the financial reforms, including financial liberalisation and regulation, do not alter efficiency in this analysis. We further find that the liquidity and total shareholders of the banking firms have a greater impact on efficiency, in relation to the other listed firms. Taken together, the results could imply that market microstructures playa more important role in causing informational efficiency in an emerging market setting to evolve over time. The third essay explores price predictability from a lead-lag cross autocorrelation perspective. In particular, it considers whether the degree of institutional investment across firms induces lead-lag cross-autocorrelation among stocks. The analysis is conducted by applying returns data at the firm level from the TISE in a Vector Autoregressive (VAR) framework. It is found that the institutionally favoured stocks (HI) "lead" the institutionally unfavoured stocks (LO), as the returns of HI predict the returns of LO better than vice versa. Moreover, HI stocks are also found to lead the TISE market portfolio. These patterns of predictability arise because the stock prices of high institutionally owned firms adjust faster to market-wide information, which implies that these prices are more informationally efficient. It is also found that the extent to which HI leads LO increases with the liquidity of the institutionally favoured stocks and the illiquidity of stocks that are not favoured by institutions. Collectively, the results of this essay provide evidence of the positive role played by institutional investors in the price adjustment process: stocks with a high degree of institutional ownership have a faster speed of adjustment, making them more informationally efficient.
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Braun, Johannes [Verfasser], and Wolfgang [Akademischer Betreuer] Schäfers. "Essays on Informational Efficiency in Real Estate Markets / Johannes Braun ; Betreuer: Wolfgang Schäfers." Regensburg : Universitätsbibliothek Regensburg, 2021. http://d-nb.info/1225935725/34.

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Zhang, Lei. "Two essays : on the common information in the return volatilities and volumes : on the informational efficiency of municipal bond market." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available, full text:, 2008. http://wwwlib.umi.com/cr/syr/main.

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Wouassom, Alain. "Momentum and Contrarian trading strategies : implication for risk-sharing and informational efficiency of security markets." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/24859.

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This thesis investigates the profitability of the Momentum and Contrarian strategies in international equity markets. In particular, I introduce for the first time the use of countries' indices performance to momentum and contrarian portfolio selection. I show that investors can switch back and forth from one country to the other in designing worldwide strategies. The global momentum strategy is consistently profitable between 1969 and 2014. The most successful momentum strategy selects stocks based on their previous performances over 9 months and then holds the portfolio for the next 3 months. This strategy yields 3% per month (42.57% per year). Interestingly, countries' indices' portfolios formed based on prior 48 months; prior losers outperform prior winners by 0.83% per month (10.40% per year) during the subsequent 60 months. The reversal effect is substantially stronger for emerging countries where it yields 1.37% per month (17.70% per year). It remains profitable in the period post-globalization. In addition, I examine for the first time the role of world risks factors in explaining the global momentum and contrarian profits and find that the global momentum strategies obtain significant abnormal returns after adjusting consecutively for world Fama and French risks (0.9% per month or 11.35% per year), and world market states risks (1.31% per month or 16.76% year). Of particular interest, I find a strong relation between world macroeconomic risks factors, notably world industrial production and the momentum return. Second, I find no substantial relation between world risks factors and the contrarian profit. These results suggest that excess return can be earned in the long run by using global investment strategies based on historical prices, challenging the weak form of the Efficient Market Hypothesis. In Chapter 1, I explain the momentum and the contrarian strategies, motivate the importance of what I propose as global momentum and contrarian strategies, and present the results obtained. In chapter 2, I review the Efficient Market Hypothesis' literatures in conformity with the Standard Finance theory. Additionally, I review the Behavioural Finance literatures with a focus on the psychology of investor decision, and the stock market under-reaction and overreaction approach of explaining the momentum and contrarian profitability. In chapter 3, I explain in details the main methodologies used to examine the global momentum and contrarian strategies profitability, and motivate the dataset used. In Chapter 4, I examine the new global momentum strategy profitability internationally. In Chapter 5, I examine the new contrarian strategy profitability internationally. In Chapter 6 I examine the role of global risks factors in explaining the momentum and contrarian profits. Finally, in Chapter 7 I conclude and highlights the limitations of the thesis.
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Books on the topic "Informational Efficiency"

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Jager, Albert. The Informational Efficiency of Economic Forecasts. Wien: Institut fur Hohere Studien, 1985.

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T, Geetha, ed. Indian capital market: Informational signalling and efficiency. New Delhi: A.P.H. Pub. Corp., 1996.

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Ehrentraud, Graw, ed. Informational efficiency in speculative markets: A theoretical investigation. Frankfurt am Main: P. Lang, 1989.

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Orosel, Gerhard O. Informational efficiency and welfare in the stock market. London: London School of Economics, Financial Markets Group, 1993.

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Ledyard, John O., ed. The Economics of Informational Decentralization: Complexity, Efficiency, and Stability. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2261-4.

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Chan-Lau, Jorge A. Testing the informational efficiency of OTC options on emerging market currencies. [Washington, D.C.]: International Monetary Fund, International Capital Markets and Monetary and Exchange Affairs Departments, 2003.

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Brown, Conor. Bond rating changes: Their informational value and impact on bond market efficiency. Dublin: University College Dublin, 1994.

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Balaban, Ercan. Informational efficiency of the Istanbul securities exchange and some rationale for public regulation. Bangor (Wales): Institute of European Finance, University of Wales, Bangor, 1996.

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Arnott, Richard J. Information and economic efficiency. Cambridge, MA: National Bureau of Economic Research, 1993.

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Econometrics of information and efficiency. Dordrecht: Kluwer Academic Publishers, 1993.

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Book chapters on the topic "Informational Efficiency"

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Jarrow, Robert A. "Market Informational Efficiency." In Continuous-Time Asset Pricing Theory, 319–30. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77821-1_16.

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Jarrow, Robert A. "Market Informational Efficiency." In Continuous-Time Asset Pricing Theory, 329–43. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74410-6_16.

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Waters, George A. "Informational Efficiency and Endogenous Rational Bubbles." In Dynamic Modeling and Econometrics in Economics and Finance, 149–72. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98714-9_7.

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Hurwicz, Leonid, and Thomas Marschak. "The informational efficiency of finite price mechanisms." In Studies in Economic Theory, 413–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-05858-9_20.

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Mikołajek-Gocejna, Magdalena. "Information Asymmetry and the Problem of Informational Efficiency on Capital Markets." In Investor Expectations in Value Based Management, 147–75. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06847-3_6.

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Cherubini, U., C. Govino, and R. Hamaui. "Informational efficiency and liquidity on the T-bond market." In Bond Markets, Treasury and Debt Management, 165–92. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1208-6_8.

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Gurdgiev, Constantin, and Adam Fleming. "Informational Efficiency and Cybersecurity: Systemic Threats to Blockchain Applications." In Innovations in Social Finance, 347–72. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72535-8_16.

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Sulaiman, Rejwan Bin, and Vitaly Schetinin. "Deep Neural-Network Prediction for Study of Informational Efficiency." In Lecture Notes in Networks and Systems, 460–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-82196-8_34.

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Brener, Jasper. "Behavioural Efficiency: A Biological Link Between Informational and Energetic Processes." In Energetics and Human Information Processing, 113–22. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4448-0_7.

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Williams, Steven R., and Roy Radner. "Efficiency in Partnership When the Joint Output is Uncertain." In The Economics of Informational Decentralization: Complexity, Efficiency, and Stability, 79–99. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2261-4_4.

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Conference papers on the topic "Informational Efficiency"

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Pospisil, Jaroslav, and Jiri Zahejsky. "Informational efficiency of human vision." In Ophthalmic Measurements and Optometry, edited by Maksymilian Pluta and Mariusz Szyjer. SPIE, 1998. http://dx.doi.org/10.1117/12.328321.

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Fedyanin, Denis. "Information Control in Reflexive Games with Agents Preliminary Informational Interactions." In 2019 1st International Conference on Control Systems, Mathematical Modelling, Automation and Energy Efficiency (SUMMA). IEEE, 2019. http://dx.doi.org/10.1109/summa48161.2019.8947563.

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Vakhidova, Liutsiia. "Vector Modeling Of A Personified Informational And Educational Environment: Professional Self-Efficiency Regulations." In Humanistic Practice in Education in a Postmodern Age. European Publisher, 2020. http://dx.doi.org/10.15405/epsbs.2020.11.32.

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Leila, Gharbi, and Halioui Khamoussi. "Informational market efficiency in GCC region: A comparative study between Islamic and conventional markets." In 2013 5th International Conference on Modeling, Simulation and Applied Optimization (ICMSAO 2013). IEEE, 2013. http://dx.doi.org/10.1109/icmsao.2013.6552720.

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Spodniak, Petr. "Informational efficiency on the nordic electricity market — The case of European price area differentials (EPAD)." In 2015 12th International Conference on the European Energy Market (EEM). IEEE, 2015. http://dx.doi.org/10.1109/eem.2015.7216749.

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Kopyltsov, A. V., and A. A. Kopyltsov. "ALGORITHM FOR EVALUATING THE QUALITY OF SOFTWARE PRODUCTS." In MODELING AND SITUATIONAL MANAGEMENT THE QUALITY OF COMPLEX SYSTEMS. Saint Petersburg State University of Aerospace Instrumentation, 2021. http://dx.doi.org/10.31799/978-5-8088-1558-2-2021-2-57-61.

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An algorithm for evaluating the quality of software products is proposed, which includes two levels. At the first level, indicators are considered: operational efficiency, memory efficiency, error tolerance, unified communication procedures, data uniformity, traceability, consistency, information input and output speed, robustness, accuracy, access control, redistribution, availability, simplicity, information input and output volume, community, independence from other software, the availability of measuring tools, modularity, machine independence, brevity, access control, communication, informational content, completeness, the possibility of training. Applying the convolution algorithm to indicators of the first level, we can obtain indicators of the second level: efficiency, integrity, ease of use, practicality, evaluation, reliability, mobility, correctness, flexibility, the ability to use in other conditions, the possibility of interaction, security. Applying the convolution algorithm to the indicators of the second level, we can evaluate the quality of software. The convolution algorithm is the sum of indicators with weighting factors. The difference from other algorithms is that the coefficients are not calculated. Coefficients are subject to conditions. Firstly, the discreteness condition, i.e. coefficients can take only discrete values with a predetermined step. Secondly, the normalization condition, i.e. the sum of all the coefficients is equal to one. Thirdly, the priority condition, i.e. all coefficients are arranged in increasing order. Using this algorithm, we obtain several convolution values. The final result of the convolution will be their arithmetic mean. Using this algorithm, you can evaluate the quality of both software products and other products and services. In particular, this algorithm can be applied to assess the quality of educational services, medical services, etc.
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Santos, Hortense, Rui Dias, Paula Heliodoro, and Paulo Alexandre. "TESTING THE EMPIRICS OF WEAK FORM OF EFFICIENT MARKET HYPOTHESIS: EVIDENCE FROM LAC REGION MARKETS." In Fourth International Scientific Conference ITEMA Recent Advances in Information Technology, Tourism, Economics, Management and Agriculture. Association of Economists and Managers of the Balkans, Belgrade, Serbia, 2020. http://dx.doi.org/10.31410/itema.2020.91v.

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The new coronavirus disease (Covid-19) evolved quickly from a regional health outbreak to a global collapse, stopping the global economy in a unprecedented way, creating uncertainty and chaos in the financial markets. Based on these events, it is intended in this paper to test the persistence of profitability in the financial markets of Argentina, Brazil, Chile, Colombia, Peru and Mexico, in the period between January 2018 to July 2020. In order to perform this analysis where undertaken different approaches in order to analyze if: (i) the financial markets of Latin America are efficient in their weak-form during the global pandemic (Covid-19)? ii) If so, the persistent long memories cause risks between these regional markets? The results suggest that the returns don’t follow the i.i.d. hypothesis, from dimension 2, reinforcing the idea that returns of stock indexes have a non-linear nature or a significant non-linear component, exception made to the Argentina market, which was expected in virtue of the Ljung-Box (with the return squares) test results, and ARCH-LM. Corroborating the exponents Detrended Fluctuation Analysis (DFA), indicate the presence of persistent long memories, namely into the following markets: Colombia (0.72), Chile (0.66), Brazil (0.58) and Peru (0.57). The Argentina market does not reject the random walk hypothesis, while the Mexican market suggests some anti-persistence (0.41). This situation has implications for investors, once that some returns can be expected, creating arbitration opportunities and abnormal income, contrary to the supposed from the random walk hypothesis and information efficiency. The t-test results of the heteroscedasticity form the two samples suggest that there is no risk transmission between these regional markets, with the exception to the BOVESPA / BOLSAA MX markets, that is, the existence of persistent long memories in the returns does not imply the risk transmission between markets. These finds allow the creation of strategies of diversification inefficient portfolios. These conclusions also open space for the market regulators to implement measures that guarantee a better informational information of these regional markets.
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Santos, Hortense, Rui Dias, Paula Heliodoro, and Paulo Alexandre. "TESTING THE EMPIRICS OF WEAK FORM OF EFFICIENT MARKET HYPOTHESIS: EVIDENCE FROM LAC REGION MARKETS." In Fourth International Scientific Conference ITEMA Recent Advances in Information Technology, Tourism, Economics, Management and Agriculture. Association of Economists and Managers of the Balkans, Belgrade, Serbia, 2020. http://dx.doi.org/10.31410/itema.2020.91.

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The new coronavirus disease (Covid-19) evolved quickly from a regional health outbreak to a global collapse, stopping the global economy in a unprecedented way, creating uncertainty and chaos in the financial markets. Based on these events, it is intended in this paper to test the persistence of profitability in the financial markets of Argentina, Brazil, Chile, Colombia, Peru and Mexico, in the period between January 2018 to July 2020. In order to perform this analysis where undertaken different approaches in order to analyze if: (i) the financial markets of Latin America are efficient in their weak-form during the global pandemic (Covid-19)? ii) If so, the persistent long memories cause risks between these regional markets? The results suggest that the returns don’t follow the i.i.d. hypothesis, from dimension 2, reinforcing the idea that returns of stock indexes have a non-linear nature or a significant non-linear component, exception made to the Argentina market, which was expected in virtue of the Ljung-Box (with the return squares) test results, and ARCH-LM. Corroborating the exponents Detrended Fluctuation Analysis (DFA), indicate the presence of persistent long memories, namely into the following markets: Colombia (0.72), Chile (0.66), Brazil (0.58) and Peru (0.57). The Argentina market does not reject the random walk hypothesis, while the Mexican market suggests some anti-persistence (0.41). This situation has implications for investors, once that some returns can be expected, creating arbitration opportunities and abnormal income, contrary to the supposed from the random walk hypothesis and information efficiency. The t-test results of the heteroscedasticity form the two samples suggest that there is no risk transmission between these regional markets, with the exception to the BOVESPA / BOLSAA MX markets, that is, the existence of persistent long memories in the returns does not imply the risk transmission between markets. These finds allow the creation of strategies of diversification inefficient portfolios. These conclusions also open space for the market regulators to implement measures that guarantee a better informational information of these regional markets.
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Li, Shengyu, Wenjun Xu, Feng Chen, Zhiqiang He, Kai Niu, and Jiaru Lin. "Resource allocation for multi-antenna multicast in OFDM-based cognitive radio networks with imperfect channel information." In ICC'14 - W14: Workshop on Energy Efficiency in Wireless Networks & Wireless Networks for Energy Efficiency (E2Nets). IEEE, 2014. http://dx.doi.org/10.1109/iccw.2014.6881224.

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Aytuganova, Cipar. "Current Problems in Labor Quality in Kyrgyzstan." In International Conference on Eurasian Economies. Eurasian Economists Association, 2011. http://dx.doi.org/10.36880/c02.00369.

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Formation or implementation of high-quality labor is an actual problem of the world economy and always considered in the theory and practice. Labor quality is the realization of increased productivity and performance of the work and responsibilities, also it is known as the main factor of economic growth in economics. Since 1991, the importance of labor quality for development of national economy and macroeconomic stability in Kyrgyzstan is growing and becoming actual in globalization and integration process, financial, informational, scientific and technical cooperation, is requiring researching. This problem studied by academics O. Bogomolov, L. Kudryavtsev, G.Kolodko, T.Koychuev and others. In economics labor defines as a set of three groups of labor skills and abilities of individuals. This group of skills combines the biological, economic and social side of man. Development of labor quality is considered at three levels: low, medium and high quality. In all states, there are complex of integrated structures that seek efficiency in own activity. In the transition period for Kyrgyzstan it is necessary to solve social problems, improve living standards. It’s necessary to abide execution of laws by from the President to the citizen, establish the subordination of society to laws, improve moral of public servants, gain people's trust in government, form up the economic culture, to eliminate the shadow economy and corruption. Economic culture must become an integral part of national ideology.
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Reports on the topic "Informational Efficiency"

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Dávila, Eduardo, and Cecilia Parlatore. Trading Costs and Informational Efficiency. Cambridge, MA: National Bureau of Economic Research, March 2019. http://dx.doi.org/10.3386/w25662.

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Breugem, Matthijs, and Adrian Buss. Institutional Investors and Information Acquisition: Implications for Asset Prices and Informational Efficiency. Cambridge, MA: National Bureau of Economic Research, June 2017. http://dx.doi.org/10.3386/w23561.

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Uthemann, Andreas, Antonio Guarino, and Marco Cipriani. Financial transaction taxes and the informational efficiency of financial markets: a structural estimation. The IFS, February 2019. http://dx.doi.org/10.1920/wp.cem.2019.07.

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Uthemann, Andreas, Antonio Guarino, and Marco Cipriani. Financial transaction taxes and the informational efficiency of financial markets: a structural estimation. The IFS, February 2019. http://dx.doi.org/10.1920/wp.cem.2019.0719.

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Marinshaw, Richard, Michael Gallaher, Tanzeed Alam, and Nadia Rouchdy. Technology Costs as a Barrier to Energy and Water Efficiency in the Commercial Sector of the United Arab Emirates. RTI Press, June 2017. http://dx.doi.org/10.3768/rtipress.2017.pb.0013.1706.

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Studies have shown that the United Arab Emirates (UAE) has some of the highest electricity and water consumption rates in the world. To understand the barriers to the adoption of energy and water efficiency, Emirates Wildlife Society in association with the World Wildlife Fund conducted 363 face-to-face interviews with representatives of companies tasked with energy and water management. The purpose was to understand the most important barriers hindering the UAE’s private sector from achieving wide-scale energy and water efficiency and to begin to identify solutions to mitigate these barriers. This paper focuses on technology costs as a barrier to energy and water efficiency in the commercial sector. Preliminary analysis indicates that, for the commercial sector, a contributing factor to the perception that efficient technologies are costly is the lack of accurate information on the full range and life cycle costs and benefits of efficient products. The most immediate solutions would be to address the financing and informational aspects of the technology cost barrier, as well as potentially provide incentives, such as rebates. In addition, attention must be given to barriers underlying many of the technology cost issues, such as subsidized tariffs and relatively few standards that would encourage adoption.
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Arnott, Richard, Bruce Greenwald, and Joseph Stiglitz. Information and Economic Efficiency. Cambridge, MA: National Bureau of Economic Research, November 1993. http://dx.doi.org/10.3386/w4533.

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Ferson, Wayne, and Andrew Siegel. Testing Portfolio Efficiency with Conditioning Information. Cambridge, MA: National Bureau of Economic Research, March 2006. http://dx.doi.org/10.3386/w12098.

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Shimer, Robert, and Iván Werning. Efficiency and Information Transmission in Bilateral Trading. Cambridge, MA: National Bureau of Economic Research, August 2015. http://dx.doi.org/10.3386/w21495.

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Hébert, Benjamin, and Jennifer La'O. Information Acquisition, Efficiency, and Non-Fundamental Volatility. Cambridge, MA: National Bureau of Economic Research, February 2020. http://dx.doi.org/10.3386/w26771.

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Philippon, Thomas, and Philipp Schnabl. Informational Rents, Macroeconomic Rents, and Efficient Bailouts. Cambridge, MA: National Bureau of Economic Research, January 2011. http://dx.doi.org/10.3386/w16727.

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