This paper analyses the equilibrium and welfare properties of an economy characterized by uncertainty and payoff externalities using a general model that nests several applications. Agents receive a private signal and an endogenous public signal, which is a noisy aggregate of individual actions...

This paper studies stylised markets with asymmetric information. When the market is modelled as a standard signalling game, inefficient outcomes arise due to the arbitrariness of off-the-equilibrium path beliefs. Such inefficient outcomes are shown not to arise in a novel game that combines...

This paper analyses the equilibrium and welfare properties of an economy characterised by uncertainty and payoff externalities using a general model that nests several applications. Agents receive a private signal and an endogenous public signal, which is a noisy aggregate of individual actions...

This paper relates informed repurchases to firm information asymmetry. We propose a new measure of informed repurchases, which is based on causality tests relating repurchase information to firm returns. Our results indicate that informed repurchases show larger abnormal returns surrounding the...

A general framework is developed for studying screening in many-agent discrete type environments wherein each agent's preferences depend endogenously on the allocations received by the other agents. Applications include optimal income taxation, performance contracting with across-worker...

How does information asymmetry between firms regarding the quality (ability) of workers, determine the distribution of workers' qualities in those firms? We build a game theoretic model of information asymmetry between 2 representative firms competing in the labor market for labor inputs. In the...

How should an agent (the sender) observing multi-dimensional data (the state vector) persuade another agent to take the desired action? We show that it is always optimal for the sender to perform a (non-linear) dimension reduction by projecting the state vector onto a lower-dimensional object...