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...

At least since 1750 when Baron de Montesquieu declared peace is the natural effect of trade, a number of economists and political scientists espoused the notion that trade among nations leads to peace. Employing resources wisely to produce one commodity rather than employing them inefficiently...

Economic resources are often seen as decisive for the outcomes of military conflicts. This paper asks whether "deeper pockets" help win wars. We construct a fine-grained dataset covering more than 700 interstate disputes and rely on exogenous resource price shocks to estimate the causal effect...

Does repression of opposition elites prevent resistance against foreign-imposed regimes? On the one hand, elimination of elites can undermine the opposition's capacity for antiregime resistance. Yet killing opposition elites deprives the new regime of useful human capital. Co-optation of elites...

Can religiosity sway a society's propensity for violence against outgroups? We first introduce two state-year-level religiosity measures for several pre-Enlightenment European states with the frequencies of religious language in book publications and Christian names of newborns. To identify...

Can religiosity sway a society's propensity for violence against outgroups? We first introduce two state-year-level religiosity measures for several pre-Enlightenment European states with the frequencies of (i) religious language in book publications and (ii) Christian names of newborns. To...

Can religiosity sway a society's propensity for violence against outgroups? We first introduce two state-year-level religiosity measures for several pre-Enlightenment European states with the frequencies of (i) religious language in book publications and (ii) Christian names of newborns. To...

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...

Many experts claim that the incidence of suicide attacks is driven by religious cleavages. To test this hypothesis, we investigate whether the total number of suicide attacks per violent conflict or the annual number of suicide attacks per country is associated with simmering religious...

Throughout history, victory in conflict has created fearsome reputations. With it, the victor ensures greater allegiance of the wider population, increasing their rents at the expense of their enemy. Such reputational concerns generate two motives for conflict. When only victory or defeat is...