Two parties sign a contract but before they fully perform they modify the contract. Should courts enforce the modified agreement? The modification may enable efficient trade in response to changed circumstances, or one party may have made an efficient relationship-specific investment and then...

Sender conveys scarce information to a number of receivers to maximize the sum of receiver payoffs. Each receiver's payoff depends on the state of the world and an action she takes. The optimal action is state contingent. Under mild regularity conditions, we show that the payoff of each receiver...

A vexing problem in contract law is modification. Two parties sign a contract but before they fully perform, they modify the contract. Should courts enforce the modified agreement? A private remedy is for the parties to write a contract that is robust to hold-up or that makes the facts relevant...