[eng] Value added of a risk transfer and pareto-optimality. . In a previous paper, we have used the concept of value added to characterize a risk sharing agreement. In this note we analyze conditions under which the value added maximization coincides with Pareto optimality. These conditions are...

[fre] Partage des risques et création de valeur ajoutée. . Les notions de prix d'achat et de prix de vente d'une loterie sont présentées pour définir les conditions d'un transfert de risque entre deux agents.. L'échange optimal consiste, dans cet article, à maximiser la valeur ajoutée...

This article deals with the optimal design of insurance contracts when the insurer faces administrative costs. If the literature provides many analyses of risk sharing with such costs, it is often assumed that these costs are linear. Furthermore, mathematical tools or initial conditions differ...

In this article, a simple paper-and-pencil experiment, based on lottery bonds, shows that financial decisions taken by participants are inconsistent with the traditional view of economic agents as risk averse expected utility maximizers. First, our results cast doubt on the relevance of variance...

We analyse the existence of preferred numbers on the French Lotto market and prove that this market is not strongly efficient in the sense of Thaler & Ziemba (1988). The preference for low numbers is investigated by means of stochastic dominance tests. The specific features of the French Lotto...