Creditors often share information about their customers' credit record. Besides helping them to spot bad risks, this informational exchange acts as a disciplinary device. If creditors are known to exchange data about defaults, borrowers must consider that default on a current lender would...

We study endogenous coalition formation in contexts where individual (and group) payoffs depend on the entire coalition structure that might form. We capture potential interaction across coalitions by means of a partition function.

In this paper we develop a theory of union power based on the aggregation of bargaining power of individual workers with firm specific skills. Union power depends on the ease of replacement from internal and external labor markets. Unions increase the bargaining power of insiders only in states...

In this paper we model the dynamic interaction of two types of agents, experimenters and imitators, whose behavior is characterized by simple rules of thumb. The agents repeatedly play a one-shot game in which the agent's actions are strategic substitutes.