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 construct a model of conflict and trade to study the consequences of interstate disputes over contested resources (land, oil, water or other resources) for arming, welfare and trade flows. Different trade regimes imply different costs of such disputes in terms of arming. Depending on world...

In this chapter, we examine how some of the main results in international trade theory fare when we abandon the traditional assumption of third-party enforcement of property rights. Without such enforcement, countries arm and exercise power to secure resources used in production or to secure the...

This chapter analyzes the influence of democratic institutions---specifically, the effects of (i) electoral uncertainty when individuals within a nation have different preferences over public peaceful investment and (ii) greater checks and balances that lead to a more effective mobilization of...

We explore the severity of an ongoing dispute over a productive resource within a country that participates in world trade. In addition to arming, the contending groups in our setting choose either to engage in destructive conflict or to settle their dispute peacefully. Our central objective is...

We examine how globalization affects trade patterns and welfare when conflict prevails domestically. We do so in a simple model of trade, in which a natural resource like oil is contested by competing groups using real resources ("guns"). Thus, conflict is viewed as ultimately stemming from...

We argue that the costs of domestic and transnational insecurity are large and economically significant and that they may vary with the trade regime of a country. Then, in evaluating trade regimes, the gains from trade need to be weighed against the change in the security costs they induce....

In this chapter, we review the recent literature on conflict and appropriation. Allowing for the possibility of conflict, which amounts to recognizing the possibility that property rights are not perfectly and costlessly enforced, represents a significant departure from the traditional paradigm...

We augment the canonical neoclassical model of trade to allow for interstate disputes over land, oil, water, or other resources. The costs of such disputes in terms of arming depend on the trade regime in place. Under either autarky or free trade, the larger country (in terms of factor...