Why do states indirectly police some kinds of transnational perpetrators by using their host governments while directly policing other kinds? We address this question by identifying the obstacles to deterring transnational perpetrators and by presenting a functional account of how indirect...

Why does a state directly police certain kinds of transnational perpetrators by itself while indirectly policing other kinds through their host government? To address this question, we develop a formal model, where Defender chooses either to police Perpetrators or to make Proxy do so. According...

This study proposes a dynamic model of rebellion, where three players individually decide to challenge their common adversary. It is formally demonstrated that the pattern of rebellion is determined endogenously, depending on the challengers' resolve and strength. In other words, a stronger...

Formal models of war termination have been developed along two major approaches: in one, war is interpreted as a series of battles, where belligerents exchange denial campaigns; in the other, war is illustrated as a process of bargaining with mutual punishments. In integrating these two...

By extending the extant costly-lottery models of war to three-party bargaining scenarios, we offer rationalist explanations for two-front war, where a state at the center is fought by two enemies at opposing peripheries. We found that even though private information exists only in one front, war...

While the theoretical literature maintains that strategic coordination is one of the keys to successful rebellion, anti-governmental campaigns are not necessarily synchronized across rebel groups in observed civil wars. To resolve this discrepancy, we develop a dynamic and spatial model of...