Three processes reflecting persistence of volatility are initially formulated by evaluating three Lévy processes at a time change given by the integral of a mean-reverting square root process. The model for the mean-reverting time change is then generalized to include non-Gaussian models that...

Extreme value theory has been widely applied in insurance and finance to model rare events. Plenty of such events have occurred in financial markets during the last two decades, including stock market crashes, currency crises, or large bankruptcies. This article applies extreme value theory...

This paper examines seasoned equity offerings in France. Even though a rights offering is the primary flotation method, French companies are increasingly using the relatively expensive public offering method. We show that the market reaction to the announcement of seasoned equity issues is...

Internationally operating firms naturally face the decision whether or not to hedge the currency risk implied by foreign investments. In a recent paper, Bos, Mahieu and van Dijk evaluate the returns from optimal and alternative currency hedging strategies, for a series of 7 models, using...

The fuzzy set approach has progressively been introduced into many areas of organisational science in order to compensate for certain inadequacies in traditional tools. Indeed behaviourists and expected utility researchers have long been studying the role of ambiguity and vagueness in the human...

En 2011, 48% des risk managers prennent leurs fonctions dans le cadre d’une création de poste. La proportion de directeurs du développement durable ayant pris leurs fonctions dans le cadre d’une création de poste l’année suivante est voisine. Ces chiffres sont la quantification d’un...

Over the last three decades, the world economy has been facing stock market crashes, currency crisis, the dot-com and real estate bubble burst, credit crunch and banking panics. As a response, extreme value theory (EVT) provides a set of ready-made approaches to risk management analysis....

Purpose of the paper: Risk orientated disclosure is a focal issue of corporate communication. Many provisions have been implemented in the USA and in Europe to promote transparency about risks faced by companies, especially by quoted ones. The increase of mandatory risk reporting applying to...