This paper investigates the determinants of the different forms taken by regional integration in different parts of the world. This raises the issue of the relationship between economic and political integration. The theoretical model shows that, in an insecure world, the interplays between...

We assess the robustness of previous findings on the determinants of terrorism. Using extreme bound analysis, the three most comprehensive terrorism datasets, and focusing on the three most commonly analyzed aspects of terrorist activity, i.e., location, victim, and perpetrator, we re-assess the...

This study shows that the relative size of the youth bulge matters for how corruption affects the internal stability of a political system. We argue that corruption cannot buy political stability (e.g., the greasing hypothesis) in countries with a relatively large youth population. Using panel...

We show that the recent rise in Afghan opium production is caused by violent conflicts. Violence destroys roads and irrigation, crucial to alternative crops, and weakens local incentives to rebuild infrastructure and enforce law and order. Exploiting a unique data set, we show that Western...

This paper examines conflicts in which performance is measured by the players' success or failure in multiple component conflicts, commonly termed “battlefields”. In multi-battlefield conflicts, behavioral linkages across battlefields depend both on the technologies of conflict within each...