This paper investigates the determinants of the structure of the banking industry by fitting a monopolistic competition model to a sample of banks drawn from eight EEC countries over 1989-1993. In the theoretical model, banks decide strategically both entry and the branching size of thier...

This paper studies optimal investment in different types of electric plants. Neither future fuel prices nor future demand are known. Furthermore, we take into account explicitly the problems of management of the peak load and of the decrease of efficiency of plants used for long periods. A two...

An elementary proof of the existence of a competitive equilibrium is given for economies where the weak axiom of revealed preference or the gross substitution property hold. It is shown by an induction argument that in these cases, the problem is reduced to the question of the existence of an...

In this paper we analyse the problem of the modelling of individual transitions in presence of an incomplete sampling scheme.

We examine an important class of decision problem under uncertainty that entails the standarrd portfolio problem and the demand for coinsurance. The agent faces a controllable risk -his demand for a risky asset for example- and a background risk. We determine how a change in the distribution in...

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.