We study the development of an industry-evolution of capacity, production and prices- in a continuous-time real-options model under various assumptions on competition. Investment takes the form of sequential acquisition of indivisible units of capacity. As benchmarks, we determine the optimal...

We study a generalization of Mirrlees' income taxation model in which qualifications of workers are both endogenous and observable by the government. Individuals differ by their inobservable abilities, which affect simultaneously their disutility of labor and their cost of training. In general...

Nous proposons un modele approprie de l'evolution deu cours de l'action dans un marche financier ou le prix d'actif a un instant peut influencer a long terme le dynamique du cours. Cet effet de longue memoire ne peut pas etre pris en compte par le modele usuel de Black et Scholes. On precise le...

Le biais d'etat de Mer (SSB) qui affecte les mesures de hauteur du niveau des oceans (SSH) est habituellement analyse grace a des modeles empiriques parametriques. Les parametres de ces modeles sont estimes de maniere a minimiser la variance residuelle des differences de SSH mesures a des points...

In three-tier principal-agent models, there is foten concern about the risk of collusion between the supervisor hired by the principal to deal with the agent, and the agent. A collusion-proof contract is often optimal, altough the literature has produced some situations in which collusion is...