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A Semi-Parametric Factor Model of Interest Rates and Tests of the Affine Term Structure

Ghysels, Eric; Ng, Serena - Centre Interuniversitaire de Recherche en Analyse des … - 1997

Many continuous time term structure of interest rate models assume a factor structure where the drift and volatility functions are affine functions of the state variable process. These models involve very specific parametric choices of factors and functional specifications of the drift and...

Persistent link: https://www.econbiz.de/10005100561

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

theory assumes that return shocks can be caused by changes in conditional volatility through a time-varying risk premium. On … between implied and realized volatilities (the variance risk premium) and we find that a positive variance risk premium (an … anticipated increase in variance) has more impact on returns than a negative variance risk premium. …

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

Finite-Sample Simulation-Based Inference in VAR Models with Applications to Order Selection and Causality Testing

Dufour, Jean-Marie; Jouini, Tarek - Centre Interuniversitaire de Recherche en Analyse des … - 2005

Statistical tests in vector autoregressive (VAR) models are typically based on large-sample approximations, involving the use of asymptotic distributions or bootstrap techniques. After documenting that such methods can be very misleading even with fairly large samples, especially when the number...

Persistent link: https://www.econbiz.de/10005100698

Distribution-Free Bounds for Serial Correlation Coefficients in Heteroskedastic Symmetric Time Series

Dufour, Jean-Marie; Farhat, Abdeljelil; Hallin, Marc - Centre Interuniversitaire de Recherche en Analyse des … - 2005

We consider the problem of testing whether the observations X1, · · ·, Xn of a time series are independent with unspecified (possibly nonidentical) distributions symmetric about a common known median. Various bounds on the distributions of serial correlation coefficients are proposed:...

Persistent link: https://www.econbiz.de/10005100838

Short Run and Long Run Causality in Time Series: Inference

Dufour, Jean-Marie; Pelletier, Denis; Renault, Éric - Centre Interuniversitaire de Recherche en Analyse des … - 2003

We propose methods for testing hypothesis of non-causality at various horizons, as defined in Dufour and Renault (1998, Econometrica). We study in detail the case of VAR models and we propose linear methods based on running vector autoregressions at different horizons. While the hypotheses...

Persistent link: https://www.econbiz.de/10005100843

Markovian Processes, Two-Sided Autoregressions and Finite-Sample Inference for Stationary and Nonstationary Autoregressive Processes

Dufour, Jean-Marie; Torrès, Olivier - Centre Interuniversitaire de Recherche en Analyse des … - 2000

In this paper, we develop finite-sample inference procedures for stationary and nonstationary autoregressive (AR) models. The method is based on special properties of Markov processes and a split-sample technique. The results on Markovian processes (intercalary independence and truncation) only...

Persistent link: https://www.econbiz.de/10005100872

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

level. The tests proposed are applied to an asset pricing model with observable risk-free rates, using monthly returns on …

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

On Stable Factor Structures in the Pricing of Risk

Ghysels, Eric - Centre Interuniversitaire de Recherche en Analyse des … - 1995

risk and return trade-offs. The two classes are the conditional CAPM and the nonlinear APT. The parameters of both models … a model, provides a stable relationship between the return series and risk factors. We use a set of recently developed …

Persistent link: https://www.econbiz.de/10005100814

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

In this paper we propose exact likelihood-based mean-variance efficiency tests of the market portfolio in the context of Capital Asset Pricing Model (CAPM), allowing for a wide class of error distributions which include normality as a special case. These tests are developed in the framework of...

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

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