When a large number of agents play a game with strategic complementarity, information choices exhibit strategic complementarity as well: If an agent wants to do what others do, then they want to know what others know. Likewise, strategic substitutability in actions produces strategic...

Recessions appear to be times when markets function less efficiently. This phenomenon has been the domain of theories that rely on changes in preferences (demand shocks) or constraints on price-setting (sticky prices). In our simple model of decentralized trade with asymmetric information,...

The covariance of sectoral and aggregate U.S. output is significantly higher than the covariance of sectoral and aggregate productivity. Explaining this industry comovement is a challenge for business cycle theory. We propose an explanation based on costly information about productivity (TFP)....