We study a strategic model of dynamic trading where agents are asymmetrically informed over common value sources of uncertainty. There is a continuum of uninformed buyers and a finite number of sellers, some of them informed. When there is only one seller, full information revelation never...

Recognizing spam as a pollution problem points to a market-based approach that could be more effective than prior approaches based on either technology or law. Combining insights from externality economics and information asymmetry, I argue that an imperfect market can create more value for...

We study the effect of strengthening CACs in a debt rollover model of a sovereign debt crisis. Conditional on default, there are multiple equilibria: the impact of strengthening CACs depends critically on the prevailing equilibrium. For a subset of equilibria, (i) given a fixed number of...

This paper presents a model in which fund managers choose between active management and passive management when investors cannot directly observe managers' efforts and skills. In an equilibrium skilled managers actively manage their funds only when skills can add a large value in active...

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...

I study a situation where two players disagree on the division of a good. In the first of two stages, the players can divide the good peacefully between them by signing a contract. If either or both players reject the contract, they must engage in a costly contest over the good. One of the...

If communication involves some transactions cost to both sender and recipient, what policy ensures that correct messages - those with positive social surplus - get sent? Filters block messages that harm recipients but benefit senders by more than transactions costs. Taxes can block positive...

We model 'money buys access' informational lobbying as a commitment from the policy-maker to observe a lobby's verifiable evidence only upon receiving an access fee. We specifically examine the policy-maker's optimal access fees in the presence of two strictly competing lobbies. Our novel method...

Some labor markets have recently developed formal signalling mechanisms, e.g. the signalling for interviews in the job market for new Ph.D. economists. We evaluate the effect of such mechanisms on two-sided matching markets by considering a game of incomplete information between firms and...