During the recent sales of UMTS licenses in Europe some countries used auctions while others resorted to so-called Beauty Contests. There seems to be a wide consensus among economists that in these and other contexts like privatisation an auction is the better selling mechanism. However, why...

During the recent sales of UMTS licenses in Europe some countries used auctions while others resorted to so-called Beauty Contests. There seems to be a wide consensus among economists that in these and other contexts like privatisation an auction is the better selling mechanism. However, why...

Die Bundesnetzagentur (BNetzA) veröffentlichte am 21. Juni 2021 ein Szenarienpapier, das sich mit Grundsätzen der zukünftigen Bereitstellung von Mobilfunkfrequenzen mit einem besonderen Fokus auf die Verbesserung der Breitbandversorgung befasst. Das ZEW - Leibniz-Zentrum für Europäische...

We compare two commonly used mechanisms in procurement: auctions and negotiations. The execution of the procurement mechanism is delegated to an agent of the buyer. The agent has private information about the buyer's preferences and may collude with one of the sellers. We provide a precise...

Recently, the combinatorial clock auction has become more and more common in the auctioning of telecommunication licenses. Although the auction design is complex, the promise is that bidding becomes simple - truthtelling is "close to optimal". We show that this claim is too strong. The auction...

Recently, the combinatorial clock auction has become more and more common in the auctioning of telecommunication licenses. Although the auction design is complex, the promise is that bidding becomes simple - truthtelling is "close to optimal". We show that this claim is too strong. The auction...