We consider preference evolution in a class of conflict models with finite populations. We show that whereas aggregate conflict effort is always the same in evolutionary equilibrium, larger populations have greater individual subjective costs of conflict effort.

One can restructure institutions, but if individual-level motivations for corrupt behavior are not understood, these restructuring may not be effective. We introduce an evolutionary-game modeling to deal with the problem of corruption driven by imitative behavior.

We apply an indirect evolutionary approach to players’ perceived prize valuations in contests. Evolution in finite populations leads to preferences that overstate the prize’s material value and induce overexpenditure. We establish an equivalence between evolutionarily stable strategies and...

I consider repeated games with local monitoring: each player observes his neighbors’ moves only. Hence, monitoring is private and imperfect. Communication is private: each player can send different (costless) messages to different players. The solution concept is perfect Bayesian equilibrium....

We revisit the effects of switching costs on dynamic competition. We consider stationary Markovian strategies, with market shares being the state variable, and characterize a relatively simple Markov Perfect pricing equilibrium at which there is switching by some consumers at all times. For the...

We consider a differential game with a corrupt government and civil society as its players. We characterize open-loop and feedback Nash equilibria and find that, whereas it is in the best interest of the government not to commit to a repression policy, civil society is better off precommitting...

We investigate the role personality plays in Finitely Repeated Prisoner’s Dilemma (FRPD) games. Even after controlling for demographic factors such as race, course of study, and cognitive ability, we find that cooperative behavior is significantly related to the Big Five personality trait...

We build on Mason and Weeds’ (2010) model of duopoly investment under uncertainty by allowing high initial values of the profit shock as in Huisman and Kort (1999). Persistent first-mover advantage increases the likelihood of immediate simultaneous investment. In contrast with previous models...

We study the provision of a public good in a social network where links are directed, i.e., the information flows one way. Our results relate, through stochastic dominance, the equilibrium outcome of such a process with the out-degree distribution of the network.

We model a vertically differentiated duopoly with quantity-setting firms as an extended game in which firms noncooperatively choose the timing of moves at the quality stage, to show that at the subgame, perfect equilibrium sequential play obtains, with the low-quality firm taking the leader’s...