How can a single player defend against the threat of a coordinated attack by a group? For example, how can a central bank defend a currency peg against speculators, a government against a revolution or a prison warden against a breakout? Bentham (1787) proposed an innovative prison concept based...

This paper considers a partial equilibrium model of conflict where two asymmetric, rational and risk-neutral opponents clash in order to redistribute a divisible prize in their favour. Differently from common contest models agents have the option of choosing a second instrument to affect the...

Two players with independent private values compete for a prize in an all-pay contest. Before the contest, each player can spy on the opponent by privately acquiring a costly, noisy, and private signal about his private value. In a symmetric equilibrium of the contest where players spy on each...

Consider a society where ethnic conflict is imminent due to people's belief about the state of the world. An `informed agent' is a player who has private information about the state. We analyze whether the informed agent can achieve peace by sending private messages to the players. If the...

We study a dynamic game in which players compete for a prize. In a waiting game with two-sided private information about strength levels, players choose between fighting, fleeing, or waiting. Players earn a “deterrence value” on top of the prize if their opponent escapes without a battle. We...

I consider two-person bargaining problems in which mechanism is selected at the almost ex ante stage---when there is some positive probability that players may have learned their private types---and the chosen mechanism is implemented at the interim stage. For these problems, I define almost ex...

The effects of pre-play communication in a coordination game with incomplete information about players' intensity of preferences are compared to no communication controls. Pre-play communication significantly increases subjects' payoffs and the probability of coordination, while reducing...

I study sequential contests where the efforts of earlier players may be disclosed to later players by nature or by design. The model has a range of applications, including rent seeking, R&D, oligopoly, public goods provision, and tragedy of the commons. I show that information about other...

In a society composed of citizens and a dictator: what are the conditions for a successful citizens' revolt? What kind of strategies do governments follow to prevent such revolts? In this paper we argue that the concept of networks is a very powerful tool to understand these issues, as shown...