[fre] Le débat répartition-capitalisation a été au centre des réflexions sur la retraite au cours des dernières années, et cet article retrace quelques-uns de ses aspects les plus marquants. Il revient d'abord sur le constat démographique initial : quelle est la nature exacte des...

This article deals with optimal insurance contracts in the framework of imprecise probabilities and adverse selection. Agents differ not only in the objective risk they face but also in the perception of risk. In monopoly, a range of configurations that VNM preferences preclude appears: a...

In many instances where public policy concerning externalities is considered, ensuring an adequate perception of the public is not less important than setting ideal taxes. We show however that public authorities are typically incited to deliver biased information (exaggeration or attenuation) to...

The paper focuses on the signaling value of a tax when agents are less informed than the government on the effect of their consumption. The policy making process is analyzed as a game in which the government wants to influence consumers' behaviors through tax policy, consumers being rational and...

This paper analyzes the role of private storage in a market for a commodity (e.g. natural gas) whose supply is subject to the threat of an irreversible disruption. We focus on the medium term in which seasonality of demand and exhaustibility can be neglected. We characterize the price and...

This paper analyzes the role of private storage in a market for a commodity (e.g. natural gas) whose supply is subject to the threat of an irreversible disruption. We focus on the medium term in which seasonality of demand and exhaustibility can be neglected. We characterize the price and...