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Exact skewness-kurtosis tests for multivariate normality and goodness-of-fit in multivariate regressions with application to asset pricing models

Dufour, Jean-Marie; Khalaf, Lynda; Beaulieu, Marie-Claude - Centre Interuniversitaire de Recherche en Analyse des … - 2003

Dans cet article, nous proposons des tests sur la forme de la distribution des erreurs dans un modèle de régression linéaire multivarié (RLM). Les tests que nous développons sont fonction des résidus obtenus par moindres carrés multivariés, lesquels sont standardisés de façon à ce que...

Persistent link: https://www.econbiz.de/10005100629

Finite-Sample Diagnostics for Multivariate Regressions with Applications to Linear Asset Pricing Models

Dufour, Jean-Marie; Khalaf, Lynda; Beaulieu, Marie-Claude - Centre Interuniversitaire de Recherche en Analyse des … - 2003

In this paper, we propose several finite-sample specification tests for multivariate linear regressions (MLR) with applications to asset pricing models. We focus on departures from the assumption of i.i.d. errors assumption, at univariate and multivariate levels, with Gaussian and non-Gaussian...

Persistent link: https://www.econbiz.de/10005100677

Testing Mean-Variance Efficiency in CAPM with Possibly Non-Gaussian Errors: an Exact Simulation-Based Approach

Beaulieu, Marie-Claude; Dufour, Jean-Marie; Khalaf, Lynda - Centre Interuniversitaire de Recherche en Analyse des … - 2002

of Capital Asset Pricing Model (CAPM), allowing for a wide class of error distributions which include normality as a … normality assumption is too restrictive when testing the CAPM. We also propose exact multivariate diagnostic checks (including … dans le contexte du modèle du CAPM (Capital Asset Pricing Model), permettent de considérer diverses classes de …

Persistent link: https://www.econbiz.de/10005100885

Exact Multivariate Tests of Asset Pricing Models with Stable Asymmetric Distributions

Beaulieu, Marie-Claude; Dufour, Jean-Marie; Khalaf, Lynda - Centre Interuniversitaire de Recherche en Analyse des … - 2005

of a multivariate linear regression (CAPM), allowing for stable error distributions. The normality assumption on the …'évaluation d'actifs (CAPM) qui sont formulés dans le contexte des modèles de régression linéaires multivariés. De plus, ces …

Persistent link: https://www.econbiz.de/10005100963

Measuring High-Frequency Causality Between Returns, Realized Volatility and Implied Volatility

Dufour, Jean-Marie; Garcia, René; Taamouti, Abderrahim - Centre Interuniversitaire de Recherche en Analyse des … - 2011

In this paper, we provide evidence on two alternative mechanisms of interaction between returns and volatilities: the leverage effect and the volatility feedback effect. We stress the importance of distinguishing between realized volatility and implied volatility, and find that implied...

Persistent link: https://www.econbiz.de/10008855592

The Value of Capital Market Regulation: IPOs versus Reverse Mergers

Carpentier, Cécile; Cumming, Douglas; Suret, Jean-Marc - Centre Interuniversitaire de Recherche en Analyse des … - 2009

We analyze the economic consequences of disclosure and regulation within a context of significant information asymmetry and lenient regulation. In Canada, firms can enter the stock market at a pre-revenue stage by fulfilling each of the requirements of an initial public offerings or using...

Persistent link: https://www.econbiz.de/10005100646

A Nonparametric Copula Based Test for Conditional Independence with Applications to Granger Causality

Bouezmarni, Taoufik; Rombouts, Jeroen; Taamouti, Abderrahim - Centre Interuniversitaire de Recherche en Analyse des … - 2009

This paper proposes a new nonparametric test for conditional independence, which is based on the comparison of Bernstein copula densities using the Hellinger distance. The test is easy to implement because it does not involve a weighting function in the test statistic, and it can be applied in...

Persistent link: https://www.econbiz.de/10005101068

Risk, Timing and Overoptimism in Private Placements and Public Offerings

Carpentier, Cécile; L'Her, Jean-François; Smith, Stephan - Centre Interuniversitaire de Recherche en Analyse des … - 2007

We examine whether risk, timing or mispricing hypotheses can explain the underperformance of private and public equity issuers, in Canada, where both categories share several common characteristics. Adding an investment risk factor to the TFPM reduces, but does not eliminate, the...

Persistent link: https://www.econbiz.de/10005100594

Option-Implied Measures of Equity Risk

Chang, Bo-Young; Christoffersen, Peter; Jacobs, Kris; … - Centre Interuniversitaire de Recherche en Analyse des … - 2009

Equity risk measured by beta is of great interest to both academics and practitioners. Existing estimates of beta use historical returns. Many studies have found option-implied volatility to be a strong predictor of future realized volatility. We .nd that option-implied volatility and skewness...

Persistent link: https://www.econbiz.de/10004976983

Risk Aversion, Intertemporal Substitution, and Option Pricing

Garcia, René; Renault, Éric - Centre Interuniversitaire de Recherche en Analyse des … - 1998

also emphasize that the most standard asset pricing models (CAPM for the stock and BS or HW preference-free option pricing …'actifs financiers les plus classiques (CAPM pour les actions, BS ou HW où les prix d'options ne font pas apparaître les paramètres de …

Persistent link: https://www.econbiz.de/10005100513