Pour une entreprise, le maintien d’une croissance soutenue pendant une longue période est délicat. Il suppose, outre des conditions de marché favorables, un pilotage du rythme de développement adapté aux contraintes financières.

Dans le cadre d'un modèle à générations imbriquées, nous supposons que la gestion d'une ressource renouvelable correspond à l'émission de quotas d'exploitation transférables. Chaque agent a la possibilité d'utiliser les quotas dans la production ou de les vendre à la génération...

This paper studies the effect of combining different insurance schemes on the efficiency of consumption smoothing in an environment without commitment. A savings account is introduced into the self-enforcing risk-sharing model of Thomas and Worrall (1988). The risk averse agent's savings play...

We study the development of a duopoly industry -evolution of firm capacities and competitive behavior- in a continuous-time real-options model of capacity investment. Our methodology allows the evaluation of investment options and exercise rules in a strategic setup. In the initial industry...

We study a simple duopoly model of preemption with multiple investments and instantaneous Bertrand competition in a stochastically growing market. Different patterns of equilibria may arise, depending on the importance of the real option effect. If the average growth rate of the market is close...

Dans ce papier, nous chercherons à comprendre, au-delà de ses fonctions techniques, comment les procédures d’investissement permettent d’institutionnaliser les grands idéaux et discours ayant trait à l’investissement. En analysant, dans le contexte français, les procédures...

Le modèle standard de concurrence avec antisélection en assurance (Rothschild et Stiglitz) suppose que les types ne diffèrent que par leur probabilité d’accident. Supposant qu’ils puissent aussi différer par leur attitude face au risque, nous mettons en évidence des configurations...

The main assumption of the paper is that the differentials of competitiveness related to ICT are nowadays less dependant on the level of the investments than on the level of their use. ICT are generally studied within the framework of developed economies and less of their impact on developing...

In this paper, we analyze the careers from a sample of more than 1,000 top French chefs over more than twenty years and link it to the success or reputation of the restaurants where they have worked. This allows us to test what are the determinants of success but also to investigate the dynamics...

The high School of Colombes (France) - Lycée Guy de Maupassant - has organized a conference where some specialists were invited to debate about "L'avenir de l'information économique". This paper reports the main ideas developed during the conference. R.Courbis (GAMA, University Paris 10),...