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

collusive agreements in terms of welfare and pluralism. We analyse and compare two forms of collusion: in the first, publishers … thus show that collusion on prices reinforces the tendency towards a Pensée Unique discussed in Gabszewicz, Laussel and …

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 …

As auctions are becoming the main mechanism for selling advertisement space on the web, marketing agencies specialized … in bidding in online auctions are proliferating. We analyze theoretically how bidding delegation to a common marketing …

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 …