This article studies the problem of regulating a monopolist with unknown marginal cost. The problem described differs from Baron and Myerson [1982] because we suppose that the regulator faces a cash-in-advance constraint. The introduction of such a constraint may lead to the collapse of the...

A benevolent social planner which faces a cost of public funds because of distortive taxation, wants to finance an upstream monopoly. This monopoly produces a necessary input for a downstream competitive sector which competes à la Cournot (with either a fixed number of firms or free entry in...

The paper identifies and tries to account for the forms taken in selected art markets for the selling of paintings, as a response to specific features and constraints in the local regulatory environment. Our analytical historics cover 15"' century Bruges, 16th century Antwerp, 17"' century...

We study the welfare impact of enforcing a competitive behavior from an unregulated fringe competing with a regulated dominant operator with imperfectly differentiated goods. The fringe is potentially collusive but may be supervised by a competition authority. We show that the...