demonstrate that, in average value auctions, this leads to more aggressive bidding. On the other hand, since collusion decreases …We examine theoretically and experimentally two countervailing effects of collusion and symmetric mergers among bidders …®ects experimentally by conducting a series of auctions with constant informational content but a varying number of bidders among whom this …

characteristic function, derived from the partition form game, is not empty. As an application, we study collusion in auctions in …

antitrust authorities in each market. We are concerned with how the sustainability of collusion in one local market is affected … by the existence of collusion in other markets when they are linked by demand relationships. The interdependence of … collusion sustainability across markets leads to potential externalities in antitrust enforcement across jurisdictions. As a …

During the recent sales of UMTS licenses in Europe some countries used auctions while others resorted to so … argument why beauty contests or negotiations might be dominated by auctions, which is closely linked to the multi …

In many auctions, the auctioneer is an agent of the seller. This delegation invites corruption. In this paper we … bidding, and how it altogether changes the revenue ranking of typical auctions. In addition we characterize incentive schemes …