We develop a theory of interstate conflict in which the degree of genealogical relatedness between populations has a positive effect on their conflict propensities because more closely related populations, on average, tend to interact more and develop more disputes over sets of common issues. We...

We develop a theory of interstate conflict in which the degree of genealogical relatedness between populations has a positive effect on their conflict propensities because more closely related populations, on average, tend to interact more and develop more disputes over sets of common issues. We...

This paper analyzes a tug-of-war contest between two teams. In each round of the tug of war a pair of agents from the opposing teams competes in a private value all-pay auction with asymmetric type distributions and effort effectiveness. Whichever team arrives first at a given lead in terms of...

This paper analyzes a tug of war contest between two teams. In each round of the tug of war a pair of agents from the opposing teams competes in a private value all-pay auction with asymmetric type distributions and effort effectiveness. Whichever team arrives first at a given lead in terms of...

This paper is the first systematic examination of (counter)terrorism dynamic games with two types of externalities: temporal and spatial. We consider two types of non-cooperative behavior; one in which national authorities are sensitive with respect to the spatial spillovers of counterterror...

Offense-defense theory argues that wars are more likely in offense-dominant periods. I study how this claim can be challenged when it comes to making predictions about terrorism. To do so, I consider a model of continuous-time conflict between a status quo state and a terrorist, who develops...

We study how conflict in contest games is influenced by rival parties being groups and by group members being able to punish each other. Our motivation stems from the analysis of socio-political conflict. The theoretical prediction is that conflict expenditures are independent of group size and...

Why have Israel and the Palestinians failed to implement a "land for peace" solution, along the lines of the Oslo Accords? This paper studies the application of game theory to this question. I show that existing models of the conflict largely rely on unrealistic assumptions about what the main...

Since Abu Bakr al-Baghdadi announced in April 2013 the formation of the new Islamic polity, the Islamic State of Iraq and Syria (ISIS), it has slowly become the epitome of terror. Certain acts of violence and atrocities committed by ISIS create the impression that it is acting out of blind,...

I propose a simple model of signed network formation, where agents make friends to extract payoffs from weaker enemies. The model thereby accounts for the interplay between friendship and alliance on one hand and enmity and antagonism on the other. Nash equilibrium configurations are such that...