In a model a la Baron and Myerson (1982), we revisit the question of regulating a firm under asymmetric information concerning the production cost when the principal has access to a costly monitoring procedure. Our analysis gives quite different results from the existing literature. We show that...

Cet article s'attache a determiner la politique optimale de lutte contre les ententes en prix lorsque les autorites concurrentielles observent imparfaitement le cout des firmes.

In this paper, I completely characterize the optimal policy against price-fixings when the agency in charge of competition policy lacks information about the production cost of an industry. I consider two types of punishment. The first one consists in imposing a fine proportional to the total...