Par un modele aussi simple que possible, nous essayons de capturer les raisons pour lesquelles plus de 40 millions d'Americains (Hellander et al., 1995) renoncent a s'assurer contre la maladie. Nous utilisons ensuite notre modele pour evaluer les effets qu'aurait eue l'introduction , prevue dans...

We study how optimal contracts are modified when the agent has the possibility to acquire information before the contract is offered to him. We consider a situation in which this information is always available to the agent just before producing. Therefore, prior information acquisition is...

Proliferation is a strategic behavior which follows various logics: the wish for pre-emption is one of these but does not stand alone. Far from it. However, the literature associates almost systematically the question of proliferation to that of pre-emption, in such a way that the interest in...

This paper proposes a model which intends to analyse the alternative between discrimination and mutualisation in insurance. We suppose there exists an observable (but initially hidden)variable, that predicts the level of risk of an individual. This variable can be observed through a testing...

This article suggests that the global inefficiency which generally affects a production process is endogenous and depends on the incentives generated by the process environment. We propose to treat the usual correlation between the inefficiency and the regressors of the production frontier...

The paper reviews some recent theoretical contributions on the modelisation of time-inconsistent preferences, as well as implications for individual behavior. The focus is on the interpretation of the concepts and the link with concepts in psychology.

We study in this paper how the technological flexibility choices and equilibrium configurations depend first on the industry characteristics (demand function and cost parameters specific to the multiproduct flexible technology and to the product dedicated technologies) and, second, on the...

Rationalization of U.S. freight railroads following the Staggers Rail Act of 1980 had led to lower real rates for many agricultural and industrial shippers, but has also been accompanied by increasing industry concentration and (more recently) merger-related service disruptions. This has led...