We study the role of communication in repeated games with private monitoring. We first show that without communication, the set of Nash equilibrium payoffs in such games is a subset of the set of ε-coarse correlated equilibrium payoffs (ε-CCE) of the underlying one-shot game. The value of...

We study the role of communication in repeated games with private monitoring. We first show that without communication, the set of Nash equilibrium payoffs in such games is a subset of the set ofε‐coarse correlated equilibrium payoffs (ε‐CCE) of the underlying one‐shot game. The value...

A group of agents with a common prior receive informative signals about an unknown state repeatedly over time. If these signals were public, agents' beliefs would be identical and commonly known. This suggests that if signals were private, then the more correlated these are, the greater the...

Antitrust law makes a sharp distinction between tacit and explicit collusion whereas the theory of repeated games -- the standard framework for studying collusion -- does not. In this paper, we study this difference in Stigler's (1964) model of secret price cutting. This is a repeated game with...

We study the role of communication in repeated games with private monitoring. In such games, players receive only noisy private signals about each other's actions. For a fixed discount factor, we identify conditions under which there are equilibria with "cheap talk" that result in nearly...

Antitrust authorities view the exchange of detailed information among firms regarding costs, prices or sales as being potentially anti-competitive. The reason is that such exchanges may allow competitors to closely monitor each other, thereby facilitating greater coordination. But the exchange...

We study a model of dynamic adverse selection in which a large group of sellers sell an asset of uncertain quality to a larger group of buyers. The quality is known to the sellers but unknown to the buyers. There is, however, the possibility that if the asset is of low quality, this will be...

Rumors of a shortage may create higher-order uncertainty and cause panic buying even when there is no real shortage and most consumers are aware of this fact. We study the role of prices in alleviating, or even preventing, panic buying caused by such rumors. Under some circumstances, flexible...