We examine the role of reputation when firms use dividends to signal their profitability. We analyze a signaling model in which reputation plays no role in equilibrium. We then show that taking reputation into account as a link between sequential dividend decisions makes it possible to...

Cet article fournit une synthèse des principaux résultats contenus dans ma thèse de doctorat consacrée à l'efficience informationnelle du marché boursier. Il s'intéresse non seulement à la vérification empirique de l'hypothèse d'efficience informationnelle du marché, mais aborde...

L'objet premier du papier est de présenter les principales hypothèses économiques nécessaires à l'élaboration des processus "Ito" de diffusion en temps continu décrivant l'évolution du rendement des actifs financiers. Le papier discute le degré de généralité de ces hypothèses et...

This article provides a survey of the main results contained in my doctoral dissertation devoted to the informational efficiency of the stock market. The thesis deals not only with the empirical verification of the informational market efficiency hypothesis, but also addresses a limited number...

This article provides a critical analysis of the empirical literature about the informational efficiency of stock markets. It has two major objectives. The first is to present an operational definition of this concept and summarize the main tests initially developed for the American stock...

The primary focus of the paper is on the main economic assumptions that are sufficient for returns to be distributed according to Itô diffusion processes defined as representations of the returns on financial assets. The paper mainly discusses the degree of generally of these assumptions and...