We study the design of profit maximizing single unit auctions under the assumption that the seller needs to incur costs to contact prospective bidders and inform them about the auction. When bidders' types are independent (with^Mpossibly bidder-specific distributions) and their valuations are...

In this paper we investigate the exclusion of types in optimal auctions. We show that multidimensional types exclusion is a general phenomenon.

In this note I prove the existence of the optimal all-pay auction when signals are correlated.

We analyze optimal schemes for privatization in a transitional economy. In many cases, established Western firms are good candidates for large shareholders of a local firm, since the sale of the shares can generate large amount of revenues and furthermore, in the future, the home country can...