Dissertations / Theses on the topic 'Prime de risque sur les actions'
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Maurice, Stéphanie. "L'énigme de la prime de risque sur actions : une application au cas français." Nantes, 2003. http://www.theses.fr/2003NANT4001.
Full textThis thesis studies the impact of the equity premium puzzle with french statistical data. The standard C-CAPM model is presented in order to highlight the theoretical underpinning of the equity premium. Using the calibration method proposed by Mehra and Prescott (1985), we delineate the equity premium puzzle. Then, we consider this puzzle using two other methods : volatility bounds and log-linear C-CAPM. We apply the three methods to french data. First, some methodological points about the construction and the use of financial and consumption statistics are discussed. It is shown that the "equity premium puzzle" also pertains to France. We study the equity premium puzzle using a non-expected recursive utility function. After a presentation of the impact of a such model in the case of us, we examine its empirical relevance for France. Finally we explores the impact of habit formation on the equity premium puzzle. Theoretical and empirical implications of habit formation are considerer for the case of us. We restrict, for the french situation, the analysis to the case where habit formation is based on a ratio model
Mpacko, Priso Auguste. "Essai sur la mesure et la détermination de la prime de risque des actions, Etats-Unis, 1947-1993." Paris 10, 1997. http://www.theses.fr/1997PA100008.
Full textThe purpose of the thesis is to propose stock risk premium measures and to look for its determinants. To measure stock risk premium, ones has to specify the horizon of the agents and the stock expectation process. For the horizon, we supposed that it may be the month, the quarter, the semester of the year. Concerning the expectation process, although the economic theory is in general founded on rational expectations, in order to see if we limit ourselves to this hypothesis, we used professional expectations of industrial stock prices quoted at new york stock exchange to test this corner stone of economic theory. Having showed that experts are individually and collectivelly incapable to achieve rational expectations, we retain seven others expectation processes. We showed that the measures and the characteristics of stock risk premium depend on the hypothesises done. Our approach for looking stock risk premium determinants is founded of the logic of arbitrage pricing theory. We first identified a number of risk factors. Then we estimated their influence on the risk premium. We especially showed that :. The stock risk premium determinants depend of the measures of the stock risk premium. . Some variables have with the stock risk premium long term relationships while others have short term links
Ben, Amor Abderaouf. "Essais sur l'évaluation de la prime de risque : Cas de la crise financière des subprimes." Thesis, Paris 8, 2016. http://www.theses.fr/2016PA080013/document.
Full textThis thesis aims primarily to explain the enigma of the risk premium by assessing the impact of the recent financial subprime crisis in the United States on the risk premium. Since the systematic risk factor remains the major factor in the risk premium, we used a conditional version of the CAPM to study the impact of the crisis on the conditional beta using econometric specification as the multivariate GARCH ( BEKK) Engel and Kroner (1995). The subprime crisis that started in late 2007 with the collapse of the US housing market, first had an impact on the local financial sector. But it gained momentum, spreading to other major financial centers. Long time, risk aversion was not as high and the bankruptcy of investment bank Lehman Brothers in mid-September, was the organ of the crisis developed. In this work, we based on the French stock market and we tried to detect the impact of the financial crisis on the risk premium sector indices. To do this, we tried to show the effect of the crisis on the systematic risk beta indices. First, we created daily by the beta bivariate GARCH (BEKK) Engel and Kroner on the period from January 1, 2007 to December 31, 2014. Then we dropped the beta introducing explanatory variables variance conditional index and the conditional variance of the
Semenov, Andrei. "Intertemporal utility models for asset pricing : reference levels and individual heterogeneity." Thèse, [Montréal] : Université de Montréal, 2003. http://wwwlib.umi.com/cr/umontreal/fullcit?pNQ92724.
Full text"Thèse présentée à la Faculté des études supérieures en vue de l'obtention du grade de Philosophiae Doctor (Ph.D.) en sciences économiques" Version électronique également disponible sur Internet.
Mpacko, Priso Auguste Prat Georges. "La prime de risque des actions : théories & applications /." Chennevières-sur-Marne : [Paris] : Dianoïa ; diff. Presses universitaires de France, 2001. http://catalogue.bnf.fr/ark:/12148/cb37658514d.
Full textGuizani, Assil. "Trois essais sur les déterminants et les conséquences de la chute du cours d’action." Thesis, Paris 10, 2020. http://www.theses.fr/2020PA100082.
Full textThis dissertation aims to investigate the determinants and consequences of the stock price crash. Using a sample of French listed firms from 2007 to 2016, we conduct three empirical essays. The first one focuses on the relationship between decision-makers’ power and stock price crash risk. The results show that the stock price crash risk increases with the power of decision-makers. In addition, the results show that analysts’ coverage and independent boards mitigate the effect of the powerful decision-makers on the stock price crash risk. The second essay investigates the effect of CEOs' overconfidence on the stock price crash risk. The results show that overconfident CEOs positively influence crash risk. However, this influence is less pronounced in the presence of a competitive product market, an owner-manager, and in well-governed firms. The third essay focuses on the effect of stock price crash on the cost of debt. We find that the cost of debt increases after a stock price crash. However, this relationship is less pronounced when the manager or the controlling family is the first large shareholder of the company
Le, bris David. "Les actions françaises depuis 1854 : analyses et découvertes." Phd thesis, Université d'Orléans, 2011. http://tel.archives-ouvertes.fr/tel-00608060.
Full textLe, Bris David. "Les actions françaises depuis 1854 : analyses et découvertes." Thesis, Orléans, 2011. http://www.theses.fr/2011ORLE0502/document.
Full textLe Bris, collecting about 200,000 data on French stocks from 1854 to 1988, builds a performance index. Several biases leading to overestimate the returns in prior French indices are demonstrated, as well as other probable examples across the globe.Over the long run, French stocks provide a better return than other assets, but without any excessive premium.Compared to US stocks, French stocks have underperformed since 1914, including during the periods of peace.The French stock market is highly sensitive to governmental changes, and overperforms under the left ones.A new method to identify market crashes is proposed. This method identifies crashes that are consistent withhistory.Firms from service industries have almost always dominated market capitalization since 1854.The rationality of the French investments in Russian bonds, before 1914, is demonstrated thanks to a portfoliooptimization among French assets (stock, bonds and corporate bonds) and eight international state bonds.A new method to decompose the benefit of diversification is proposed; before 1914, French investors wereclearly attracted by low foreign correlation rather than higher foreign returns.French and US stocks present a long-term rise in correlation, probably following the economic integration.Thus, the incentive to diversify through international markets has decreased.The market risk exhibits a significant rise during the interwar-period, and the pre-1914 level is never reachedagain. This risk appears to be linked to the end of the Gold Standard, the inflation rate and the public deficits.The consequence of the rise of this common risk is that the correlation among French stocks trend upwards, andthen, reduce the domestic portfolio effect; reversely, before 1914, a “super portfolio effect” is identified
Nalpas, Nicolas. "L'énigme de la prime de risque : évaluation sur données françaises et tentative de solution." Paris 1, 2003. http://www.theses.fr/2003PA010014.
Full textHdia, Mouna. "La dynamique des marchés énergétiques : essais sur l’efficience informationnelle et la prime de risque." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLE011/document.
Full textThis thesis aims at studying the dynamics of energy price through the investigation of their efficiency degree and the dynamics of risk premium.To this end, this study has been structured into three chapters : The first one is theoretical while the two others are empirical. In particular, the first chapter develops the conceptual framework for this study, defines the concepts, and recalls the issues related to investment strategies and diversification opportunities on energy markets. It also discusses the related literature review. The second chapter focuses on the informational efficiency hypothesis for commodity markets in the short and long terms using several parametric and non-parametric tests. It shows that the efficiency degree varies with commodity, region and temporal horizon. Further, it carries out bivariate portfolio simulations in order to illustrate diversification opportunities and identify optimal investment strategies. In the third chapter, we look at the dynamics of risk premium in order to explain the inefficient character of commodity markets using a DCC-GARCH (1,1) model. Our findings do not reject the hypothesis of time-varying risk premium, which helps to better understand the fact that commodity markets alternate between inefficiency in the short term and efficiency in the long term
Morin, Sébastien. "Essais en économie et gestion des risques sur les marchés actions." Rennes 1, 2004. http://www.theses.fr/2004REN1G014.
Full textJimenez-Garces, Sonia. "Information privée sur les marchés financiers : une étude de la prime de risque dans un cadre général." Grenoble 2, 2004. http://www.theses.fr/2004GRE21019.
Full textThis doctoral thesis aims at studying the information risk premium on financial markets from a theoretical, an empirical and a practical point of view. Theoretically, this thesis introduces a new rational expectation equilibrium asset pricing model for asymmetrically informed investors. Our model enables us to analyse the information risk premium in a general case, taking into account many risky assets and several sources of correlation between them. The model specification allows us to draw many new interesting theoretical conclusions and empirically testable hypothesis. Our model can also be applied on several ways. For example, the model permits explaining some market « anomalies » and phenomena in international finance. The goal of our empirical study is to test the presence of an information factor on the financial markets and to analyse the weight of this factor. The information factor is approached by a new asymmetric information measure directly founded on rational expectation equilibrium models in asymmetric information. We analyse the impact of the information factor on stock returns and show that investors require an information risk premium to hold assets. A second empirical analysis in the thesis studies mutual funds performance and their degree of specialisation as functions of the asymmetric information degree of their assets. Our empirical results corroborate the conclusions of our theoretical model
Gatfaoui, Hayette. "Évaluation et analyse du risque de défaut de paiement des actifs financiers." Paris 1, 2002. http://www.theses.fr/2002PA010025.
Full textCoutant, Sophie. "Contenu en informations dans les prix d'options : estimation de la densité neutre au risque du sous-jacent et applications." Paris 9, 2001. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=2001PA090024.
Full textThis thesis is concerned by the information content in option prices. More precisely, a first part consists in estimating the risk neutral distribution of the option underlying asset. In a second part, we study the feasible applications of the knowledge of this risk neutral density : expectations analysis of markets participants using confidence intervals, tests of expectation hypothesis, estimation of market participants risk aversion function
Ceylan, Ozcan. "Aversion contracyclique pour le risque et les biais psychologiques : Etude du marché financier français sur données intrajournalières." Paris 10, 2011. http://www.theses.fr/2011PA100101.
Full textThe thesis presents a set of theoretical reflections and empirical studies that aim to assess the causes and consequences of variations in the level of risk aversion. The volatility risk premium (VRP) which is estimated basing on the implied and realized volatilities provides a reliable proxy for the level of risk aversion. Throughout the thesis, the VRP is estimated in a model-free fashion, relying on the intraday data on French financial market. The first chapter identifies macro-economic and financial variables that drive the time-variations in the VRP. The second chapter studies the impact of a shock to the VRP level on the correlations between assets, sectors and the French market and explains the counter-cyclical variations in the cross-sectional and time-series properties of correlation patterns through the investors' limited information processing capacity. The third chapter reconsiders the volatility asymmetry phenomenon and shows that this asymmetry is more pronounced in the periods of high volatility and risk aversion
Fontaine, Joanie. "L'efficience des dépenses publiques et son impact sur les taux d'intérêt et la cote de crédit dans les pays de l'OCDE." Mémoire, Université de Sherbrooke, 2014. http://savoirs.usherbrooke.ca/handle/11143/5338.
Full textDavid, Thomas. "Trois essais sur la trésorerie des entreprises." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLED041/document.
Full textThe increasingly competitive and uncertain economic environment requires firms to show caution and to anticipate their needs. Based on this observation, this thesis discusses several topics that are closely related to corporate cash management choices. The first chapter of this thesis show that offering an optional stock dividend enables firms to temporarily reduce cash outflows to shareholders without being penalized by the market. This peculiar type of payout then allows firms to maintain their levels of liquidity and flexibility during economic downturns. The second chapter focuses on the link between customer risk and corporate liquidity management choices. High customer risk then appears to firms holding higher cash reserves compared to credit lines. Finally, the third chapter highlights the benefits of maintaining long-term buyer-supplier relationships. These partnerships then arises as sources of increased operating efficiency and profitability for firms
Tortellier, Nathalie. "Etude comparée entre les sociétés fermées à risque limité de droits français et hongkongais : contribution à la réflexion sur la simplification du droit français des sociétés." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1G002.
Full textObserving Hong Kong private companies with liability limited by shares (hereafter "Company") evolving in the Common Law system was a rewarding experience: efficiency and simplicity and safety are the main features of Companies that come to mind. Looking at French SARL and SAS gives quite a different picture: laws and orders are overabundant, legal and administrative requirements constitute a burden on directors, members and directors cannot really benefit from a flexible environment as State interventionism is deeply rooted in the French legal culture. We identified various mechanisms and regulations belonging to the Company that contributed to its international success. We studied these mechanisms and regulations and understood their founding principles and significance. Then we compared them to those of the SARL and SAS in order to inspire flexibility, simplicity and supervised freedom to these two corporate bodies. The study compared the following features: the rapidity and the safety of incorporation as well as of deregistration; the freedom of the members to use model articles of association as well as adapting the suggested model; the freedom of the members to define their membership using classes of shares as well as the management of the Company's business; company secretary and certified public accountant providing corporate governance support to directors as well as information to members for their controlling role. This comparative study aims at putting forward recommendations to develop French companies as a tool for contemporary economic players and to promote company law's economic efficiency
Lefebvre, Benoît. "Immobilier de bureaux et environnement économique en Europe : essais sur les réactions et interactions de marché." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLED009/document.
Full textThis thesis studies the European office market through different perspectives. In the first part, we study the effects of the unconventional monetary policies on the office market. First, we analyse the effect of the money supply on the dynamics of the London office market and then, on the main office markets across Europe. We find that the money supply has a positive effect on the office prices through an increase of the demand. This result confirms our theoretical expectations based on a IS-LM Mundell-Fleming framework. We find also an important heterogeneity across the European markets, with the biggest ones that have more benefited from QE policies and the others that were not able to attract the available liquidities. Finally, we analyse the dynamics of the rental values across the main office markets in Europe using a twostage modelling: at a Pan-European level and at a local level. Our results highlight that, even if Europe could be considered as a federal union, real estate markets still have important heterogeneities that need to be studied by investors
Masse, Manon. "Quel programme de formation pour prévenir la maltraitance en milieu institutionnel ? : Analyse des retombées d’une formation sur les représentations de la maltraitance, ses facteurs de protection et les actions développées.- Analyse des retombées d’une formation sur les représentations de la maltraitance, ses facteurs de protection et les actions développées." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO20002.
Full textLong ignored or denied, incidents of abuse are now regularly reported and recognized as commonplace in institutions catering for people with disabilities. It is widely recommended that staff should receive training in order to help prevent such abuse, and even that such training modules should now be made compulsory in initial training programmes for all staff working directly with residents. However, virtually nothing is said about the content of such courses, nor about the pedagogical approaches that should be adopted. This thesis analyses such a training program and its outcomes. The programme was conceived with a view to improving active prevention, taking into account the evolution of the concept of abuse, the need for prior work on representations of abuse and the option of an eco-systemic approach to the issue. In order to better understand outcomes, three distinct pedagogical approaches were included. The programme is proposed to social workers during the final year of their initial training. Our approach tests the hypothesis that changes in representations of what constitutes abuse and its factors of protection occur during the training course and may result in specific preventive action. It allows us to develop the methodological approaches needed to analyse such a training programme and also to make recommendations regarding the content and the adoption of appropriate pedagogical methods
Diabate, Alassane. "Liquidity risk and fair value accounting : implications for banks capital structure, lending and stability." Thesis, Limoges, 2020. http://www.theses.fr/2020LIMO0002.
Full textThis thesis comprises three empirical essays based on U.S. commercial banks’ data. It aims to highlight the implications of liquidity risk and fair value accounting on banks’ capital structure, lending and their stability. Thus, the first chapter investigates if episodes of liquidity squeeze on the market affect banks’ capital structure adjustment. The findings reveal that only small banks react to such episodes by increasing their capital ratio. To do so, they reduce the share of loans in total assets, decrease the share of assets with higher risk weights and they downsize their overall balance sheets. These results suggest that liquidity requirements might be redundant for small banks but appear to be necessary for large banks. The second chapter analyses whether the impact of an unexpected flow of deposits on loan origination depends upon the degree of banks’ off-balance sheet funding liquidity risk exposure. The results show that only small banks increase their lending when they are subject to unexpected deposit inflows. The increase in lending depends on how much they are exposed to funding liquidity risk stemming from their off-balance sheets. Small banks more exposed to such funding liquidity risk tend to extend fewer new loans. These results indicate that unexpected deposit inflows might not as easily be fueled again to borrowers. The third chapter examines the effect of banks’ holdings of Level 2 and Level 3 fair value assets on risk-taking and insolvency risk. The results reveal that banks with larger proportions of Level 2 and Level 3 fair value assets take on higher risk and are more exposed to insolvency risk. These findings suggest that the banking system may become more fragile when investors perceive reliability concerns in banks’ assets
Mondon, Sylvain. "Une approche par la pratique des relations entre action, organisation et décision en contexte extrême : le cas de la course au large à la voile." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAC019.
Full textResearch issue is dedicated to the relationships between action, decision and organization in extreme context during performance seeking. These relationships are approached from the point of view of an ongoing action in order to analyze time lags management in decision-making practices in a time perspective of action. Two offshore racing sample are analyzed using an ethnomethodological approach by decision-making practice of the organized activity based on an immersion within the organization during competition. Time lags between the perception of events at stake and their management within the organization are modeled in the form of decision phenomenon. We conclude that, in extreme context, organization’s performance is linked to its ability to implement a decision-making practice consistent with temporal circumstances of the action. This result contributes to a practice theory of organization
Ben, Bader Mohamed. "Trois essais sur la volatilité boursière et ses variations asymétriques." Thèse, 2012. http://www.archipel.uqam.ca/4911/1/D2315.pdf.
Full textFontaine, Jean-Sébastien. "Trois essais sur la liquidité : ses effets sur les primes de risque, les anticipations et l'asymétrie des risques financiers." Thèse, 2009. http://hdl.handle.net/1866/3025.
Full textEssaddam, Mohamed Naceur. "Impact du risque politique sur les taux de rendement boursier et leur volatilité : le cas du Québec /." 2002. http://proquest.umi.com/pqdweb?did=765192871&sid=2&Fmt=2&clientId=9268&RQT=309&VName=PQD.
Full textCopy, Béatrice. "Impacts de la politique fiscale et familiale, introduite en 2005, sur la participation au marché du travail d'un groupe "à risque" : étude du cas des mères de famille monoparentale au Québec." Mémoire, 2010. http://www.archipel.uqam.ca/3584/1/M11660.pdf.
Full textTédongap, Roméo. "Three essays in empirical asset pricing." Thèse, 2008. http://hdl.handle.net/1866/2247.
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