In this paper, we explore two factors that can limit arming and, more generally, the costs of enforcement within and across states: governance or the formal organizations and institutions that help define and enforce property rights, and norms, or the informal arrangements in settling potential...

We examine a stark setting in which security or protection can be provided by self-governing groups or by for-profit entrepreneurs (kings, kleptocrats, or mafia dons). Though selfgovernance is best for the population, it faces problems of long-term viability. Typically, in providing security the...

This paper examines the problem of the formation of alliances in conflict and, more generally, in contests with three players. Each player possesses an exogenous strategic endowment (e.g., arms, efforts, rent-seeking activity). The outcome of contests, including those between any alliances of...

Organized crime emerges out of the power vaccuum that is created by the absence of state enforcement, and which can have many sources: geographic, social, and ethnic distance, prohibition, or simply collapse of state institutions. Mafias and gangs are hierarchically organized and can be thought...

This paper examines interaction in the absence of property rights when agents face a trade-off between productive and coercive activities. In this setting, conflict is not the necessary outcome of one-time interaction and cooperation is consistent with domination of one agent over another. Other...