This thesis deals with different problems related to markets with transaction costs and is composed of four parts.In part I, we begin with the study of assymptotic hedging a European option in a local volatility model with bid-ask spread.In part II, we study the optimal consumption problem in a...

Ce chapitre présente le domaine professionnel et la prise en compte des risques organisationnels, les résultats de recherche en risques organisationnels et le modèle d'identification des risques organisationnels à partir de la coordination.

Marketing has been given a strong interface and connection role within the literature, creating the assumption of a naturally “open” marketing. However, specifically, the opening of the marketing organization is not so obvious. In a theoretical paper, Day (2011) introduces the Open Marketing...

After generics, which are copies of chemical medicines, "copies" of already patented biologics (biosimilars) are entering the biologics market and competing with their originators. Many uncertainties remain regarding the development of this newly emerging market, and the ability of biosimilars...

La méthodologie de la théorisation enracinée est une approche devant permettre de générer des théories innovantes et légitimes d’un point de vue scientifique. Elle peut toutefois faillir à atteindre ces deux objectifs, en particulier à cause de la tension vécue par le chercheur entre...