Since Hardin first formulated the tragedy of the commons, researchers have described various ways that commons problems are solved, all based on the model of individual rationality. Invariably, these institutional solutions involve creating some system of property rights. We formulate an...

The protests associated with the 2011 Arab Spring represent a serious and sustained challenge to autocratic rule in the Middle East. Under what conditions will Arab protest movements translate into a full-fledged ‘fourth wave’ of democratization? We argue that questions about the...

This paper challenges the notion that voting games with purely instrumental players cannot account for high turnout (the ‘turnout paradox'). Although it has been known for over 25 years that such games can generate high-turnout equilibria, the said equilibria have been rejected on the grounds...

Gradualism is common in international cooperation, as states begin with limited cooperation and choose more ambitious targets slowly over time. However, most models of international cooperation are static and thus cannot explain gradualism. I show that when states can implement domestic reforms...

How do individual agents enact the institutions that govern collective behavior in a social situation? How do individuals come to share self-enforcing expectations about collective behavior, so that societal rules and constraints have an effect on individual choice? Conventional accounts, such...

Recent work on game theory and juries reaches the startling result that making convictions easier (by easing the requirement for unanimity) would make false convictions rarer. Only the guilty would be put at increased risk. The note explains why the result is contingent on a quirk in the...

This paper continues the examination of the validity of game-theoretic explanations in empirical social science and policy research. Assuming that real actors with bounded rationality would be unable to cope with the explosive complexity of n-person games, discussion focuses on the conditions...

The theoretical literature of interstate conflict is dominated by two conceptual models, classical deterrence theory and the spiral model. The fundamental tenet of classical deterrence theory is that credible and capable threats can prevent the initiation, and contain the escalation, of...