We give necessary and sufficient conditions for the existence of symmetric equilibrium without ties in common values auctions, with multidimensional independent types and no monotonic assumptions. When the conditions are not satisfied, we are still able to prove the existence of pure strategy...

We develop a model in which firms set their salary levels before matching with workers. Wages fall relative to any competitive equilibrium while profits rise almost as much, implying little inefficiency. Furthermore, the best firms gain the most from the system while wages become compressed. We...

We study security-bid auctions in which bidders compete for an asset by bidding with securities. That is, they offer payments that are contingent on the realized value of the asset being sold. Standard auction mechanisms (such as first-price and second-price auctions) are not well defined unless...

We consider two-round elimination tournaments where players have fixed resources instead of cost functions. Two approaches are suggested. If the players have the same resources and a success function is stochastic, then players always spend more resources in the first than in the second round in...

When a seller gives a buyer a right of first refusal, although it reduces the competing buyers' profits and creates an inefficiency, it always increases the joint profit of the seller and the right holder. Right of first refusal with a consideration (e.g., a payment from the right holder to the...

This paper considers the possibility that a seller can contract with one uninformed buyer prior to an auction involving two potential buyers. In a more general setting than previous literature, strategic ex-ante contracts not only extract rent from entrants, but could also mitigate the...

Most of the literature on auctions assumes that the auctioneer owns the object on sale. However most auctions are organized and run by an agent of the owner. This separation generates the possibility of corruption. We analyze the effect of a particular form of corruption on bidding behavior in a...

We study security-bid auctions in which bidders compete for an asset by bidding with securities. That is, they offer payments that are contingent on the realized value of the asset being sold. Standard auction mechanisms (such as first-price and second-price auctions) are not well defined unless...

Within the heterogeneous independent private values model, we analyze bidder collusion at first and second price single-object auctions, allowing for within-cartel transfers. Our primary focus is on (i) coalitions that contain a strict subset of all bidders and (ii) collusive mechanisms that do...