We study a model of local evolution. Players are located on a network and play games agains their neighbors. Players are characterized by three properties: (1) The stage game strategies they use agains their neighbors. (2) The repeated game strategy that determines the former. (3) A learning...

We present a simple model of spatial evolution that avoids several problems that arise with more complex networks of players. We consider a world where pairs of players are permanently matched. These players learn from the whole population but they are more likely to learn to strategies used by...

This paper applies the idea of evolution to a spatial model. We assume that prisoners' dilemmas or coordination games are played repeatedly within neighborhoods where players do not optimize but instead copy successful strategies. Discriminatory behavior of players is introduced representing...

The study of evolutionary dynamics was so far mainly restricted to finite strategy spaces. In this paper we show that this unsatisfying restriction is unnecessary. We specify a simple condition under which the continuous time replicator dynamics are well defined for the case of infinte strategy...

Mismatches typically arise because of information problems in markets. This paper discusses the possibility of mismatching in partnerships focussing on strategic mismatches that cannot be explained by information problems. It is shown that due to market competition sometimes players can profit...

We analyze explicit and implicit contracts in a repeated principal-agent model with observable but only partially contractible actions of the agent. It is shown that the set of implementable actions may increase or decrease if additional actions become contractible.

This paper develops a model of political consensus in order to explain the missing link between inequality and political redistribution. Political consensu s is an implicit agreement not to vote for extreme policy proposals. We show tha t such an agreement may play an efficiency-enhancing role....