I present a model of corruption with incomplete information where the bureaucrat may request bribe from citizen for providing service. show that is detrimental to social welfare and consider new policy prevent it. propose punishing bureaucrats who take bribes rewarding citizens report such cases. Neither punishment nor rewards can alone. However, proper combination completely prevents corruptio...

We formulate a rational choice model of popular behavior during an insurgency. An individual in the population either supports the insurgents or the government depending upon his attitude and the actions taken by each side. We focus on the effect of insurgency actions: benefits, impositions, and coercion. While benefits and impositions are applied uniformly throughout, the insurgents intend to ...