In repeated games there is in general a large set of equilibria. We also know that in the repeated prisoners dilemma there is a profusion of neutrally stable strategies, but no strategy that is evolutionarily stable. This paper investigates whether and how neutrally stable strategies can be...

We examine an experimental gift exchange game in which the players can improve upon theunique no-gifts equilibrium through cooperative gift giving. The main feature of the study is thatthere are two different types of gift exchange, which we call simple and complex exchange,respectively. Complex...

An experiment is conducted were subjects interact repeatedly to examine the effect of a particular leniency program on cartel formation, cartel stability and cartel recidivism. The program leads to lower prices for three reasons. First, non-cooperators are more persistent in their behavior which...