This paper proposes a new approach of fighting collusion in tournaments which sheds light on the principle of divide and conquer: the principal can benefit from manipulating information revelation, by which he brings asymmetric information between the agents and thus creates a distortion of...

This paper brings a new point of view into the theory of collusion-proof mechanism design, which highlights the principle of divide and conquer. We relax the restriction of publicly enforced grand contract in the framework of Laffont-Martimort-Itoh, which allows us to incorporate the approach of...

We study the effect of encouraging private actions for breaches of competition law. We develop a model in which a plaintiff, who may have private information about whether a breach of law has been committed, decides whether to open a case against a defendant. If opened, the case may be settled...

Wheras non-price restrictions such as exclusive territories are often tolerated while Resale Price Maintenance (RPM) is rather unanimously forbidden, the economic analysis shows so far that both types of restraints have positive and negative effects on welfare, in such a way that the balance is...

Patent thickets, layers of licenses a firm needs to be able to offer products that embody technologies owned by multiple firms, and licensing policies have drawn increasing scrutiny from policy makers. Patent thickets involve complementary products, which gives rise to double marginalization --...