In the Grossman-Hart-Moore property rights approach to the theory of the firm, it is usually assumed that information is symmetric. Ownership matters for investment incentives, provided that investments are partly relationship-specific. We study the case of completely relationship-specific...

In this paper we address the question of collusion in mechanisms under asymmetric information. We develop a methodology to analyze collusion as an informed principal problem. First, if collusion occurs after the agents accept or reject the principal's offer, the dominant-strategy implementation...

"Implicit Contracts, incentive compatibility, and involuntary unemployment" (MacLeod and Malcomson, 1989) remains our most highly cited work. We briefly review the development of this paper and of our subsequent related work, and conclude with reflections on the future of relational contract...

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...

This paper characterizes the optimal contract when a principal has unverifiable subjective information that is correlated with an agent's private information. We find that the principal's subjective information alleviates the initial information asymmetry only if the correlation is sufficiently...

A bilateral trading model with investment is considered. In a "cooperative" investment version of the model, the seller's investment stochastically determines the buyer's valuation of the good. The value and cost of the good are realized only after the investment is made, and the investment...

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...

In many cases, the cost of an agent acquiring information is lower than that for the principal. However, because of a private benefit difference between the principal's and agent's preferences, the principal often cannot fully utilize the agent's advantage. This paper considers the cost of...

When partnerships come to an end, partners must find a way to efficiently reallocate the commonly owned assets to those who value them the most. This requires that the aforementioned members possess enough financial resources to buy out the others’ shares. I investigate ex post efficient...

Optimal contracts between a buyer and a seller who trade multiple goods under asymmetric information are considered. The seller makes sequences of unobservable investments, and then realizes the value of the goods. The investment level and value of goods are private information for the seller...