Online auctions with a fixed end-time often experience a sharp increase in bidding towards the end despite using a proxy-bidding format. We provide a novel explanation of this phenomenon under private values. We study a correlated private values environment in which the seller bids in her own...

We study the question of auction design in an IPV setting characterized by ambiguity. We assume that the preferences of agents exhibit ambiguity aversion; in particular, they are represented by the epsilon-contamination model. We show that a simple variation of a discrete Dutch auction can...

It is often claimed that e-commerce has created a more competitive environment by encouraging the entry of new online firms and by enabling buyers to search easily for the lowest prices. The limited evidence that exists paints a mixed picture. Many online markets are advertising- and...

The current debate on the new Basel Accord gives rise to a natural question about the appropriate form of capital regulation.We construct a simple framework to analyze this issue. In our model the risk carried by a bank as well as managerial risk preference are a bank's private information. We...

If entrepreneurs have private information about factors influencing the outcome of an investment, individual lending is inefficient. The literature typically offers solutions based on the assumption of full peer information to solve adverse selection problems and peer monitoring to solve moral...

If entrepreneurs have private information about factors influencing the outcome of an investment, individual lending is inefficient. The literature emphasizes improvements through non-market organizations that harness local information through peer monitoring. I investigate the complementary...

A repo auction is a multi-unit common value auction in which bidders submit demand functions. Such auctions are used by the Bundesbank as well as the European Central Bank as the principal instrument for implementing monetary policy. In this paper, we analyze a repo auction with a uniform...

It is frequently claimed that the growth of e-commerce has created a more competitive environment. It is argued that lower production costs of online retailers encourages new entry in previously concentrated sectors, and a marked reduction in search costs and switching costs increase the...

Multi-unit common value uniform price auctions with demand function bids are in widespread use. I analyze this auction when there is an informed bidder and other uninformed bidders. In such auctions it is easy to construct equilibria in which uninformed bidders earn a positive payoff by free...