In the symmetric independent private value model, we revisit auctions with entry by adding two additional ingredients … rights to cancel the sale may provide some valuable flexibility in second price auctions. However, both fail to be efficient …, special emphasis is put on the equilibrium analysis of auctions with shill bidding and on a variety of associated new insights …

We study the impact of crossholdings on the efficiency of the standard auction formats. The ascending auction is not …

grand coalition is a known result. Finally, we study collusion in auctions as a mechanism design problem, insisting on the …

induce sincere bidding in hypothetical auctions. …

Do French Students really bid sincerely in real and hypothetical incentive compatible auctions? Recent evidence …

setting the efficiency properties of these two market mechanisms, given a market structure similar to the existing one in …

The relative efficiency of auctions and negotiations is still a puzzle in the literature. While auctions are the … conditions under which negotiation is more efficient. In particular, they show that auctions perform poorly when projects are …

bidding in hypothetical auctions. …