The purpose of this paper is to study hospital costs in the event of introduction of a Prospective Payment System in France. We use a nested three dimensional database (stays-hospitals-years) to identify hospital unobservable heterogeneity and a transitory moral hazard component of cost...

We constructed a database containing 1 540 economics researcher working in France in 1998. For each scholar we have his/her current affiliation his/her professional status and the list of all his/her publications as referenced by "EconLit." Twelve indices, taking or not into account the journal...

We examine the effect of bilateral trade in a concentrated industry under Cournot competition, when firms are regulated by national agencies who care about national social welfare. We allow for differences in costs and market sizes and for asymmetric information between regulatory agencies and...

This paper explores the dynamics of agglomeration in a spatial economy. Consumers can choose to use a modern urban technology or a traditional one that can be performed anywhere. The modern technology offers higher returns but urban workers must bear commuting costs that reduce labor supply....