How do public and private information affect equilibrium allocations and social welfare in economies with investment complementarities? And what is the optimal transparency in the information conveyed, for example, by economic statistics, policy announcements, or news in the media? We first...

We propose a robust solution concept for Bayesian persuasion thataccounts for the Sender's concern that her Bayesian belief about theenvironment---which we call the conjecture---may be false.Specifically, the Sender is uncertain about the exogenous sourcesof information the Receivers may learn...

In recent years there has been a growing interest in macro models with heterogeneity in information and complementarity in actions. These models deliver promising positive properties, such as heightened inertia and volatility. But they also raise important normative questions, such as whether...

This paper examines equilibrium and welfare in a tractable class of economies with externalities, strategic complementarity or substitutability, and incomplete information. In equilibrium, complementarity amplifies aggregate volatility by increasing the sensitivity of actions to public...

This paper studies policy in a class of economies in which information about commonly-relevant fundamentals -- such as aggregate productivity and demand conditions -- is dispersed and can not be centralized by the government. In these economies, the decentralized use of information can fail to...

This paper considers games in which multiple principals contract simultaneously and noncooperatively with the same agent. We introduce a new class of revelation mechanisms which, although they do not always permit a complete equilibrium characterization, do facilitate the characterization of the...