We consider rules (strategies, commitments, contracts, or computer programs) that make behavior contingent on an opponent's rule. The set of perfectly observable rules is not well defined. Previous contributions avoid this problem by restricting the rules deemed admissible. We instead limit the...

A hedonic analysis of principal-agent employment contracts is developed in which workers and employers exchange labor services and contractual payment patterns and is applied to contract data from a household-level survey in rural China in 1935. The results indicate that credit market...

We study the implementability of stable correspondences in marriage markets with externalities. We prove that, contrary to what happens in markets without externalities, no stable revelation mechanism makes a dominant strategy for the agents on one side of the market to reveal their preferences....