In this note, we consider an economy with heterogeneous agents, differing by their time preference rate and by their beliefs. We show that at the Pareto optimum, the representative agent exhibits interesting behavioral properties. More precisely, starting from a standard model with expected...

We address the problem of a social planner who, as in Weitzman (2001), gathers data on discount rates and wants to infer the socially efficient consumption discount rate. We propose an equilibrium approach and we analyse the expression and the properties of the resulting equilibrium discount...

In this paper, we show that behavioral features can be obtained at a group level when the individuals of the group are heterogeneous enough. More precisely, starting from a standard model of Pareto optimal allocations, with expected utility maximizers and exponential dis- counting, but allowing...

Cet article défend l'idée selon laquelle une scolarisation minimale obligatoire peut constituer un complément efficace à une taxe qui financerait l'éducation en présence d'évasion fiscale. Nous construisons un modèle à générations d'agents dans lequel deux régimes d'éducation sont...

Cet article étudie les différences d'efficacité entre écoles primaires publiques et privées de la capitale malgache. Nous cherchons à voir si la baisse relative des inscriptions dans les écoles publiques s'est accompagnée d'une perte de qualité relative de l'enseignement public à...

This paper proposes an equilibrium approach to belief manipulation and deception in which agents only have coarse knowledge of their opponent's strategy. Equilibrium requires the coarse knowledge available to agents to be correct, and the inferences and optimizations to be made on the basis of...

I show that the structure of the firm is not neutral in respect to regulatory capital budgeted under rules which are based on the Value-at-Risk. Indeed, when a holding company has the liberty to divide its risk into as many subsidiaries as needed, and when the subsidiaries are subject to...

Can investors with irrational beliefs be neglected as long as they are rational on average ? Does unbiased disagreement lead to trades that cancel out with no consequences on prices, as implicitly assumed by the traditional models ? We show in this paper that there is an important impact of...

Cet article expose la problématique de la volatilité des prix des matières premières, montre quels sont les moyens pour s’en protéger et explique comment les employer. Les instruments de couverture sont présentés en première section, en distinguant le type de besoin auquel ils...

Issue des travaux conduits en partenariat entre l’ANACT et une recherche doctorale, notre communication s’articule autour de l’actuel mouvement convergent de formation des managers à la prévention des risques psychosociaux et nous amène à nous intéresser de plus près aux liens entre...