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...

With the ascendance of the terrorist group known as the Islamic State of Iraq and Syria (ISIS), the international community has struggled to adapt to the new international security context. Among the challenges that are currently being confronted are questions relating to how states may...

This research establishes that the emergence, prevalence, recurrence, and severity of intrastate conflicts in the modern era reflect the long shadow of prehistory. Exploiting variations across national populations, it demonstrates that genetic diversity, as determined predominantly during the...

Genocides and mass atrocities do not arise spontaneously, but tend to be meticulously sourced and managed. As such the concern in this paper is with the role of businesses in these processes, with a particular focus on the agency and decision making of entrepreneurs and managers. We critically...

Civil conflicts spill over into neighboring countries. This paper proposes a theory of the contagion of civil wars. Weak territorial control facilitates the emergence of a regional market for war inputs in the “porous frontier.” The contagion effect is nonlinear and creates multiple...

This study empirically investigates the impact of group characteristics and host country conditions on the duration and the ending of terrorist organizations and rebel groups. The empirical analysis relies on data for more than 600 armed groups from the Terrorist Organization Profiles, collected...

I critically review recent studies that estimate those costs of violence and conflict that can emerge among organized political groupings, from states, religious and ethnic organizations to guerillas and paramilitaries. The review includes studies that estimate direct and indirect costs due to...