We examine the empirical validity of the Fed Model and the Graham and Dodd model for five countries and over a time period spanning three decades by applying the Enders and Granger (1998) and Enders and Siklos (2001) threshold unit-root and cointegration tests. Our results support the hypothesis...

This article brings new insights on the role played by (implied) volatility on the WTI crude oil spot price. An increase in the volatility subsequent to an increase in the oil price (i.e. inverse leverage effect) remains the dominant effect as it might reflect the fear of oil consumers to face...

Présentation d'un ensemble d'instruments financiers permettant de réduire les risques pris par l'acheteur dans une économie mondialisée. Dans l'industrie, ces outils financiers confortent l'analyse économique et stratégique des décisions d'investissement.

Cet ouvrage présente et simule les principaux modèles de volatilité et d'évaluation d'options standards avec une discussion essentiellement centrée autour du smile de volatilité. Le premier chapitre permet d'aborder les modèles de volatilité locale et implicite. Le second chapitre se...

This paper fulfills the lack of option pricing empirical studies devoted to the French market and is also the first paper that brings a comparison between the Heston (1993) closed-form solution model and the Hull and White (1988) model, built in a series expansion form. The empirical study is...

Dependence is an important issue in credit risk portfolio modeling and pricing. We discuss a straightforward common factor model of credit risk dependence, which is motivated by intensity models such as Duffie and Singleton (1998), among others. In the empirical analysis, we study dependence...

This article analyses the behavior of the French media during the campaign leading to the 29 May 2005 referendum on the Treaty Establishing a Constitution for Europe. It is shown that the French media bears their share of responsibility in the rejection of the Treaty as they campaigned in favor...

This paper proposes a new ‘World Volatility Index’, coined WVIX, by constructing the first index that approximates the aggregate volatility level of the G20 countries. The empirical analysis makes use of the factor dynamic conditional correlation model – with an automated methodology to...

This paper contains the first empirical application of the Dynamic Equicorrelation (DECO) model to a cross-market dataset composed of equities, bonds, foreign exchange rates and commodities during 1983-2013. The originality of our approach consists in examining the volatility equicorrelations,...

The article focuses on the leverage effect modeling as a form of stochastic processes through the volatility model. It states that leverage effect is characterized by a subsequent stock price dropping and increase in volatility. It mentions that the first model that describes the volatility and...