Plusieurs gestionnaires de portefeuille pensent encore à tort qu’une couverture delta suffit pour protéger leur portefeuille contre les fluctuations des marchés financiers. Mais une augmentation marquée de la volatilité des cours boursiers les décevra dans leurs attentes. Après avoir...

Monte Carlo simulation has an advantage upon the binomial tree as it can take into account the multidimensions of a problem. However it convergence speed is slower. In this article, we show how this method may be improved by various means: antithetic variables, control variates and low...

In this paper, we simulate portfolios which aim to insure the invested capital. The object of our simulations is the duplication of the cashflows of strategies based on options. We initially show how to duplicate the cash-flows of a call by using a leveraged portfolio of stocks. After, we...

Markets makers quote many option categories in terms of implicit volatility. In doing so, they can reactivate the Black and Scholes model which assumes that the volatility of an option underlying is constant while it is highly variable. First of all, this article, whose purpose is very...

This review presents the main tools and results of the research between finance and macroeconomics. The ambition of this literature is to provide a joint analysis of the business cycle and financial asset returns. This paper adopts this perspective and suggests a critical analysis of the...

This paper uses panel data and Euler equations to estimate preference specifications that are nonseparable in consumption and leisure. The econometric analysis uses panel data, and therefore it differs from existing econometric studies that use a representative agent framework. Moreover, the...

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...

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...

Cette étude montre qu'il est possible, dans un cadre d'équilibre d'anticipations rationnelles bruité, d'établir une relation linéaire formelle entre le prix des titres, la moyenne (le consensus) et la dispersion des anticipations des agents. Les variations de la moyenne et de la dispersion...