An auction framework is examined where each seller is uncertain about whether or not he will have a good available to sell. A timely example includes the auctioning off of radio spectrum by licensed primary users to unlicensed secondary users. A licensed primary user may not use the spectrum all...

We demonstrate the advantages of a climate treaty based solely on rules for international permit markets when there is uncertainty about abatement costs and environmental damages. Such a ‘Rules Treaty’ comprises a scaling factor and a refunding rule. Each signatory can freely choose the...

"At least 25 countries have used IPO auctions, but most have since abandoned them. We argue that this is because auctions, being indirect mechanisms, require a level of sophistication above that of many investors. Through suitably calibrated examples, we show that even sophisticated investors...

We characterize optimal IPO design in the distinct adverse selection problems: one affecting the IPO stage and one arising in the after-market. Allocating shares to an investor with superior information in the after-market depresses the share's value to less informed investors. However, because...