Auctions can lead to efficient allocations in a wide class of assignment problems. In the presence of externalities, however, efficiency may no longer be guaranteed. This paper develops an ascending price auction based on Ausubel & Milgrom (2002)'s package auction that posesses an efficient Nash...

This paper examines a perfectly discriminating contest (all-pay auction) with two asymmetric players. Valuations are endogenous and depend on the effort each player invests in the contest. The shape of the valuation function is common knowledge and differs between the contestants. Some key...

We examine ascending auctions with independent private values and a buyout option. The buyout option gives each buyer the opportunity to end the auction prematurely and acquire the object for a fixed price. We fully characterize the unique symmetric equilibrium and show that buyers with...

This paper examines a perfectly discriminating contest (all-pay auction) with two asymmetric players. Valuations are endogenous and depend on the effort each player invests in the contest. The shape of the valuation function is common knowledge and differs between the contestants. Some key...

This paper examines a perfectly discriminating contest (all-pay auction) with two asymmetric players. We focus on unordered valuations. Valuations are endogenous (polynomial functions) and depend on the effort each player invests in the contest. The shape of the valuation function is common...

This paper examines a perfectly discriminating contest (all-pay auction) with two asymmetric players. We focus on unordered valuations. Valuations are endogenous (polynomial functions) and depend on the effort each player invests in the contest. The shape of the valuation function is common...