We study multi-unit auctions where bidders have single-unit demand and asymmetric information. For symmetric equilibria, we identify circumstances where uniform-pricing is better for the auctioneer than pay-as-bid pricing, and where transparency improves the revenue of the auctioneer. An issue...

We consider a general mechanism design setting where each agent can acquire covert information before participating in the mechanism. The central question is whether a mechanism exists which provides the efficient incentives for information acquisition ex-ante and implements the efficient...

A seller wishes to sell an object to one of multiple bidders. The valuations of the bidders are privately known. We consider the joint design problem in which the seller can decide the accuracy by which bidders learn their valuation and to whom to sell at what price. We establish that optimal...

Blockchain implementations of auctions have to deal with the problem of front-running: block production happens at discrete intervals, and anyone can inspect and react to the incoming bids before they are written on chain. The presence of smart contracts among bidders, a hallmark of automated...

After the close of an auction, the winning bidder may find that he is unable to carry out his bid offer. This paper seeks to determine what measures the seller should take to maximize his share of the surplus when bidders are privately informed about their risk of default. Special attention is...

In many auctions, matching between the bidder and seller raises the value of the contract for both parties. However, information about the quality of the match may be incomplete. We consider the case in which each bidder observes the quality of his match with the seller but the seller does not...

This paper explores the buyer-optimal information structures in a monopolistic screening context with nonlinear production technology. It shows that the buyer's optimal surplus may increase even when the production cost becomes more uncertain or when the efficient surplus decreases. Under a...

When partnerships come to an end, partners must find a way to efficiently reallocate the commonly owned assets to those who value them the most. This requires that the aforementioned members possess enough financial resources to buy out the others’ shares. I investigate ex post efficient...

In the context of first-price auctions with asymmetrically informed bidders, we show that risk aversion not only increases a player's bid, but also makes him less sensitive to the probability that other bidders are informed about his private valuation

The contest entails one prize and n potential bidders. Each bidder receives a signal about the value of the prize and has a signal-dependent probability of participation. All bidders bear a cost of bidding that is an increasing function of their bids. It is shown that the contest organizer...