We develop a model that combines competitive exchange of private commodities across endogenously formed groups with public good provision and global collective decisions. There is a tension between local and global collective decisions. In particular, we show that group formation and collective...

We construct a general equilibrium model in which a pay-as- you-go social security system can be adopted and sustained as a political and economic equilibrium. We analyze the welfare implications of this system and compare general equilibrium welfare measures to the commonly used notion of...

We construct a general equilibrium model in which a pay-as-you-go social security system can be adopted and sustained as a political and economic equilibrium. We analyze the welfare implications of this system and compare general equilibrium welfare measures to the commonly used notion of...

This paper presents a general equilibrium model of conflict based on a world populated by representative democracies. At the individual state level, when information regarding a leader's ability to defend the state against unavoidable conflict is valuable to voters, an incumbent leader seeking...