Academic literature on the topic 'Asymétrie dans la volatilité'
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Journal articles on the topic "Asymétrie dans la volatilité"
Revaz, Yves. "Une asymétrie dans les tourbillons cosmiques." GAIA - Ecological Perspectives for Science and Society 12, no. 4 (November 1, 2003): 282–86. http://dx.doi.org/10.14512/gaia.12.4.14.
Full textNABOUK, Mohamed. "Effet de la crise de Covid sur la persistance et l’asymétrie de la volatilité du marché boursier marocain." International Journal of Financial Accountability, Economics, Management, and Auditing (IJFAEMA) 3, no. 4 (July 26, 2021): 441–54. http://dx.doi.org/10.52502/ijfaema.v3i4.113.
Full textHenry, Louis. "Recherches sur la volatilité dans les composés carbonés." Recueil des Travaux Chimiques des Pays-Bas et de la Belgique 16, no. 7 (September 3, 2010): 218–25. http://dx.doi.org/10.1002/recl.18970160703.
Full textTo, Minh Chau, and Benoît Marcil. "La transaction programmée et la volatilité." Articles 65, no. 2 (February 3, 2009): 248–62. http://dx.doi.org/10.7202/601491ar.
Full textLandes, Xavier. "La dimension numérique dans le concept de minorité : efficience et justice ethnoculturelle1." Les ateliers de l'éthique 6, no. 2 (February 29, 2012): 49–78. http://dx.doi.org/10.7202/1008031ar.
Full textElyakime, Bernard, and Patrice Loisel. "Asymétrie dans des enchères à prix de retrait secret." Revue économique 48, no. 4 (July 1997): 835. http://dx.doi.org/10.2307/3502702.
Full textElyakime, Bernard, and Patrice Loisel. "Asymétrie dans des enchères à prix de retrait secret." Revue économique 48, no. 4 (1997): 835–51. http://dx.doi.org/10.3406/reco.1997.409918.
Full textBensafta, Kamel Malik, and Gervasio Semedo. "De la transmission de la volatilité à la contagion entre marchés boursiers : l’éclairage d’un modèle VAR non linéaire avec bris structurels en variance." Articles 85, no. 1 (May 18, 2010): 13–76. http://dx.doi.org/10.7202/039734ar.
Full textBolognini, Stefano. "Le bar dans le désert, symétrie et asymétrie dans le traitement d'adolescents difficiles." Adolescence 59, no. 1 (2007): 133. http://dx.doi.org/10.3917/ado.059.0133.
Full textPedron, L., and M. Bubrovszky. "Asymétrie d’activité frontale de la bande alpha et dépression." European Psychiatry 30, S2 (November 2015): S120. http://dx.doi.org/10.1016/j.eurpsy.2015.09.230.
Full textDissertations / Theses on the topic "Asymétrie dans la volatilité"
Mannaï, Samir. "De la microstructure en général et de la liquidité en particulier : théories et études empiriques sur le MONEP." Paris 9, 1994. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1994PA090043.
Full textThe objective of this dissertation is to investigate the liquidity of the MONEP, which encompasses studying the bid-ask spread, transaction volume, and volatility, as well as their interday and intraday variations. The bid-ask spread on options increases with its volatility, moneyness, Eta, Gamma, and Vega. The theory of adverse information is tested and rejected; there is no evidence of the information effect on the MONEP, which is therefore not dominated by insiders. There is no interday effect on the MONEP, and the only intraday effect detected, is for the transaction volume, which occurs between 11:oo a. M. And noon. The implied volatility of options on the CAC 40 index is a better estimator than the GARCH volatility with respect to estimation of realized volatility. As a result, the implied volatility can be used to create an index of volatility on the MONEP, coded VPX. This index can then be chosen as the underlying of new instruments such as futures and options on futures. These tools can help market makers and traders hedge against the risk of volatility as well as improve the market liquidity
Clément-Guillotin, Corentin. "Genre et sexe dans le domaine sportif : d'une asymétrie sociale à une asymétrie cognitive." Paris 11, 2010. http://www.theses.fr/2010PA113003.
Full textThis thesis aims at showing some socio-cognitive mechanisms which would explain « why the spike heel does not guide the heel in sport ». It also addresses the validity of such issue. With regard to an important increase in female sports participation in the last thirty years, sport may not be a traditional masculine domain anymore. Eleven studies including a validation of questionnaire (Study 1) examined the influence of gender and sex categories on social judgements and current cognitive links between these categories and sport. According to Lorenzi-Cioldi (1988), to a social asymmetry in female and male relations would match a cognitive asymmetry. "Privileged" cognitive links between sport context and gender and sex categories are confirmed (Studies 9, 10 and 11). Studies 6 and 7 show in particular that masculine sex is salient in this context and becomes highly accessible in individual's cognitive system (i. E. , gender schema). This cognitive asymmetry permits to explain why studies 2, 3 and 6 show the emergence of stereotype in favour of men in PE teachers' judgments. These asymmetries also appear in gender categories. The sport-masculinity association seems integrated in gender schema (Studies 7 and 8) and being learned (Studies 4 and 5). This gendered cognitive asymmetry allows to understand why a masculine profile is considered as providing more chance to succeed in PE for pupils who endorse it (Studies 2 and 3) and why one perceives oneself more masculine when imagining being a successful athlete (Study 7). These studies are essentially based on theoretical approaches arguing ambivalence in individuals' judgments (e. G. , shifting standards model; Biemat, 2003) and using indirect methods (i. E. , using objective scales, priming and IAT paradigms, collecting response latencies)
Silvestre, Stephan. "Asymétries, volatilité et déterminants des prix sur les marchés des matières premières énergétiques." Thesis, Paris 10, 2016. http://www.theses.fr/2016PA100192/document.
Full textChanges in oil and fuel prices since the 1970s represent a major subject of study for economists, particularly because of tbeir impact on consumer purchasing power. In the 1990s, economists have ideotified and modeled an asymmetric effect in the transmission oil prices, which they deepened through more sophisticated econometric models. However, the role ofvolatility is still imperfectly de.scribed and questions remain open. How do economic agents change their behavior in times of increased uncertainty? Are transmission factors of prices affected? What differences are there between the upstream and downstream in the value chaio? These issues are addressed in three studies, which have been or will be the subject of publications in internatiooaJ journals. As a whole, this thesis shows the importance of the role of regime changes in the transmission of prices on energy markets. Our results also aUowed us to confirm or deny some assomptions ofliterature, such as the preseoce of asymmetries in the French fuel market, their disappearance in the downstream market as a result of competition and strengthening of public control, the effect of price volatility on asymmetries or that of the US production of sbale gas on the oatural gasconsumption. Tbese empirical results are of academic interest to ecooomists, but also operational for market regulators and governments in the management of the energy transition
Chuffart, Thomas. "Problèmes de choix de modèles dans la volatilité conditionnelle." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM2022.
Full textThis Ph.D. thesis composed by three chapters contributes to the development of model selection in GARCH-type models.The first chapter investigates whether the most common selection criteria lead to choose the right specification in a regime switching framework. We propose simulation experiments which reveal the inefficiency of some selection criteria in particular cases which lead to misspecification. Depending on the Data Generating Process used in the experiments, great care is needed when choosing a criterion.In the second chapter, a misspecication test for GARCH-type models is presented. We propose a Lagrange Multiplier type test based on a Taylor expansion to distinguish between (G)ARCH models and unknown nonlinear GARCH-type models. This test can be seen as a general misspecication test. We investigate the size and the power of this test through Monte Carlo experiments. We show the usefulness of our test with an illustrative empirical example based on daily exchange rate returns.In the third chapter, we study the impact of oil price returns on sovereign Credit Default Swaps (CDS) spreads for two major oil producers, Russia and Venezuela. Using daily spreads from 2008 to 2015, we find that crude oil price returns are a critical determinant of Venezuela CDS spreads changes, but does not explain significantly Russian CDS spreads. Indeed, oil prices seem to impact Russian CDS spreads through the exchange rates canal. Finally, we propose as an appendix the manual of the MSGtool, a MATLAB toolbox, which provides a collection of functions for the simulation and estimation of a large variety of Markov Switching GARCH (MSG) models
Le, Dreff Gwénaëlle. "Biais de positivité et asymétrie positive-négative dans le jugement." Rennes 2, 1994. http://www.theses.fr/1994REN20036.
Full textThis doctoral dissertation deals with the positive bias which tends to incline somebody else in a rather favourable light this concept is taken into consideration by teachers, people concerned with assessing and social workers. The experiments are carried out mainly with children-aged 9 to 12- and reveal a definite influence of society on the level of positivity of a judgment
Ruchaud, François. "Sexe, genre et jugement social dans le domaine des activités physiques et sportives : d’une asymétrie sociale à une asymétrie motrice." Thesis, Paris 10, 2015. http://www.theses.fr/2015PA100041.
Full textDespite efforts toward equality, the participation in a professional activity, recreational or sport contrary to gender stereotypes always involves of disapproval from others (Schmalz, Kerstetter, & Anderson, 2008). The objective of this doctoral work is to show that our judgments on gender and on sex of people are more influenced by the social hierarchy between the sexes, as by the context. This thesis advances, in a first part, that to a social asymmetry corresponds a cognitive asymmetry on the judgements related to the gender of the people. For men, only the dimension « feminine » varies according to the type of activity performed, while for women, the change is found on two dimensions: masculine and feminine. The same observation can be made in a sex categorization task. With measures in real-time (MouseTracker, Freeman & Ambady, 2010), in the second part, we show a motor asymmetry in the process of categorization that would reflect cognitive asymmetry observed previously. This result reinforces the idea that the man can be considered as the dominant group: its judgment do not depend on the context, while in contrast, we observe that judgments on women (i.e., the dominated group) are more influenced by the context. Finally, we explore the hypothesis that the influence of the social hierarchy would be marked at the functional level. In conclusion, this doctoral work supports the idea that our judgments on men and women are not only influenced by the context, but also by the social position of individuals
Kyrtsou, Catherine. "Hétérogénéité et chaos stochastique dans les marchés boursiers." Montpellier 1, 2002. http://www.theses.fr/2002MON10003.
Full textYousfi, Ouidad. "Asymétrie d'information dans le financement des rachats LBO : une approche contractuelle." Paris 10, 2009. http://www.theses.fr/2009PA100009.
Full textThis work provides a theory of the LBO finance; we study the relationship between the financial capital structure and the efforts' incentives when there is an information asymmetry. The first chapter describes the progress of the LBC acquisitions in the American, the European, and the French markets. We prescrit the factors explaining the LBO "wave' and the risks in these acquisitions. The second chapter provides a survey of the financial literature on the LBO debt. This literature shows that the debt has positive effects on the new company. It reduces agency costs, bas tex saving advantages increases the company performance and solves asymmetric information problems. But, it may be advantageous only fo the new shareholders of the acquired company because it induces just money's transfer. The gains corne from the creatiol of monopoly power. In chapter 3, we consider a double sided moral hazard model with three agents: the entrepreneur, th LBO fund and the bank. Without taxes, whether the project is financed with a mixture of debt and equity or solely wit equity, the entrepreneur and the LBO fund provide the saure levels of efforts. The debt has no impacts on the agentt inventives. We conclude that the excessive use of debt is explained by the tex advantages: the debt's interests are deduce from the amount of tex which creates additional revenue of success to be shared between the two partners. This revenu leads them to provide high efforts. The chapter 4 prescrits a dynamic agency model in which the LBO fund van write o the entrepreneur's project This decision depends on the legal environment, basically on the compensation cost, and on tl characteristics of the company's market. When all agents contrebute financially to the project, the threat of write-o induces the entrepreneur and the LBO fund to provide high but non-optimal efforts. When the compensation cost is fixed by the legislature, the optimal sharing ride depends on the quality of the competitive buyout : if this project is not ve profitable, it is shared between the bank and the entrepreneur. Otherwise, the whole compensation is pledged to the entrepreneur which boosts her inventives to provide high effort in the first period. When this cost is endogenous, the entrepreneur captures the entire amount of compensation
Malongo, Elouaï Hassan. "Couverture du risque de volatilité et de corrélation dans un portefeuille." Thesis, Paris 9, 2014. http://www.theses.fr/2014PA090005.
Full textThis work focuses on modeling the dynamics of volatilities and correlations between financial assets returns. After a literature review of univariate and multivariate GARCH-type models, the author establishes results for the existence and uniqueness of stationary solutions of dynamic correlations models (DCC model, Engle 2002). He then extends this class of models including instantaneous volatility and probability of regime changes in the dynamics of correlations. The new models are empirically evaluated on a MSCI portfolio. Formal tests have shown that some of these new specifications improve predictive power of the returns covariance matrix that would be useful in portfolio management. Finally, focusing now on the volatility risk, the author shows that hedging strategies of main European equity indices based on implied volatility indices (VIX, VSTOXX) are relevant and allow to both hedge and reduce the equity risk of a portfolio
Perret, Gaële. "Etude de l' asymétrie cyclone-anticyclone dans les sillages de grande échelle." Phd thesis, Paris 6, 2005. http://pastel.archives-ouvertes.fr/pastel-00002367.
Full textBooks on the topic "Asymétrie dans la volatilité"
Hamdani, Daood. Business demographics, volatility and change in the service sector =: Démographie des entreprises, volatilité et changement dans le secteur des services. Ottawa, Ont: Statistics Canada = Statistique Canada, 1998.
Find full textR, Baldwin John. Volatilité de l'emploi au niveau régional dans le secteur canadien de la fabrication: Les effets de la spécialisation et du commerce. Ottawa: Statistique Canada, Direction des études analytiques, 2002.
Find full textBook chapters on the topic "Asymétrie dans la volatilité"
Poloni, Bernard. "La citoyenneté dans l’entreprise: une asymétrie franco-allemande." In Krisen und Krisenbewusstsein in Deutschland und Frankreich in den 1960er Jahren, edited by Bernhard Gotto, Horst Möller, Jean Mondot, and Nicole Pelletier, 69–78. München: OLDENBOURG WISSENSCHAFTSVERLAG, 2012. http://dx.doi.org/10.1524/9783486716191.69.
Full textCavanna, Thomas. "Chapitre 10. L’impact désastreux de la vulnérabilité croissante des États-Unis dans « l’arc de crise »." In De la volatilité comme paradigme, 163–79. CNRS Éditions, 2017. http://dx.doi.org/10.4000/books.editionscnrs.13414.
Full textGONG, Junji. "Asymétrie culturelle entre les termes de parenté chinois et français." In Distance entre langues, distance entre cultures, 33–44. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.3687.
Full textConference papers on the topic "Asymétrie dans la volatilité"
Oujdad, S., S. Zafad, H. El Attar, and I. Ben Yahya. "Histiocytose langerhansienne de l’adulte : à propos d’un cas." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603013.
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