A central question in economics is understanding the difficulties that parties have in reaching mutually beneficial agreements. Informational differences provide an appealing explanation for bargaining inefficiencies. This chapter provides an overview of the theoretical and empirical literature...

The traditional literature on kidney exchange assumes that all components of the exchange must occur simultaneously. Unfortunately, the number of operating rooms required for concurrent surgeries poses a significant constraint on the beneficial exchanges that may be attained. The basic insight...

The Combinatorial Clock Auction (CCA) is an important recent innovation in auction design which has been adopted for many spectrum auctions worldwide. Since its inception, the CCA has been in almost continual evolution. We begin by reviewing some important changes which have already occurred....

We study the theory and practical implementation of auctioning many divisible goods. With multiple related goods, price discovery is important not only to reduce the winner's curse, but more importantly, to simplify the bidder's decision problem and to facilitate the revelation of preferences in...

It has been argued that two factors -- product durability and (potential) entry -- may force a monopolist to price at marginal cost. This article shows that when these two forces coexist, the tendency toward competition may be negated. First, we prove that durable goods oligopolists without...

When bidders exhibit multi-unit demands, standard auction methods generally yield inefficient outcomes. This article proposes a new ascending-bid auction for homogeneous goods, such as Treasury bills or telecommunications spectrum. The auctioneer announces a price and bidders respond with...

This article proposes a new dynamic design for auctioning multiple heterogeneous commodities. An auctioneer wishes to allocate K types of commodities among n bidders. The auctioneer announces a vector of current prices, bidders report quantities demanded at these prices, and the auctioneer...