This note focuses on the design of prevention programmes and the role of tort law regarding the control of risky activities, associated with unknown or imperfectly known risks, such as innovation or (long term) environmental damages. Together with the existence of perception bias on the side of...

The new lru law (loi relative aux libertés et responsabilités des universités) changed the structure of power within the French university system. Prior to this law, the President of a university was elected by the members of three governing bodies: i) the board of directors, ii) the...

In this paper, we will re-examine the problems linked to the management of environmental risks and reassert the distinction made by Knight [1921] between « risk » and « uncertainty ». Taking into account this uncertainty in a formal way is totally justified for the analysis of environmental...

The purpose of this paper is to analyze the apportionment of seats in intercommunal structures in the Val-d?Oise region. We compare the observed distribution of the seats to a theoretical one obtained with the Webster?s method (or Saint-Laguë?s method). This comparison is made using the most...

We compare the optimal insurance contribution rate and welfare levels for two opposite social insurance systems: a beveridgean one and a bismarckian one. The social contribution rates are decided by majority voting rule in both cases. In a model where agents earn heterogeneous incomes, we...

The purpose of this paper is to suggest how to apply the notion of ?normative science??. We propose two resolutions to Sen?s paradox of a Paretian liberal by invoking two opposite philosophic traditions ? liberalism of freedom and liberalism of happiness. Thanks to formalized tools which reflect...

The purpose of the model is to analyse the genesis and evolution of consumption oriented chat rooms in the Web space. We study an endogeneous consumption dynamics in which individuals make their buying decisions on the basis of a threefold information: their own consumption past experience...

The aim of this article is to analyze the behavior of a consumer towards a current good whose consumption generates a health risk occurring soon after, such as a risk of food poisoning related to the presence of harmful elements. Starting from a simple model, in which the function of individual...

We consider, in this paper, the allocation of pollution quotas as a mechanism design problem. The first objective of pollution quotas is to reduce pollution, but raising revenue is an additional goal when taxation is distortionary. As there is a conflict between allocative efficiency and...

This paper investigates the impact of health risk on insurance contract with hazard moral. We use a bi-dimensional utility function (wealth and health status). We prove that the type of health risk influences the equilibrium of insurance market. A full coverage is possible with moral hazard....