How effective is terrorism? This question has generated lively scholarly debate and is of obvious importance to policy makers. Most existing studies of terrorism are not well-equipped to answer this question as they lack an appropriate comparison. This paper compares the outcomes of civil wars...

A large literature analyzing the sources and consequences of civil war intervention demonstrate both that it is a patterned, predictable event and that it is particularly consequential for civil war states. Interventions are associated with longer, bloodier civil wars. Such civil wars are more...

Conflict management benefits of intergovernmental organizations (IGOs) are well established in the international conflict literature. Yet, IGOs' abilities to address conflicts within member countries are not all that well understood. This is an important omission as most recent conflicts are...

Despite many claims by high-ranking policy-makers and some scientists that climate change breeds violent conflict, the existing empirical literature has so far not been able to identify a systematic, causal relationship of this kind. This may either reflect de facto absence of such a...