Columbia's School of International and Public Affairs comprises more than 70 full-time faculty and more than 200 adjunct faculty, scholars, and practitioners. All have distinguished themselves in research and leadership in the policy world, and have produced scholarship in a wide variety of subjects, including international relations, democratization, elections, demography, and social policy.

November 2018|Proceedings of the National Academy of Sciences|Karla Hoff, Benjamin Brooks, Priyanka Pandey

We report experimental findings on how individuals from different cultures solve a repeated coordination game of common interest. The results overturn earlier findings that fixed pairs are almost assured to coordinate on an efficient and cooperative equilibrium. Subjects in the prior experiments were US university students, whereas the subjects in our study are men drawn from high and low castes in rural India. Most low-caste pairs quickly established an efficient and cooperative convention, but most high-caste pairs did not. The largest difference in behavior occurred when a player suffered a loss because he had tried to cooperate but his partner did not: In this situation, high-caste men were far less likely than low-caste men to continue trying to cooperate in the next period. Our interpretation is that for many high-caste men, the loss resulting from coordination failure triggered retaliation. Our results are robust to controls for education and wealth, and they hold by subcaste as well as by caste status. A survey we conducted supports the ethnographic evidence that more high-caste than low-caste men prefer to retaliate against a slight. We find no evidence that caste differences in trust or self-efficacy explain the caste gap in cooperation in our experiment. Our findings are of general interest because many societies throughout the world have cultures that lead individuals to (mis)perceive some actions as insults and to respond aggressively and dysfunctionally.

November 2018|WIRED|William G. Rich

The US Leans on Private Firms to Expose Foreign Hackers

October 2018|Foreign Policy|Dipali Mukhopadhyay , Omar Sharifi
October 2018|American Economic Journal: Applied Economics|Rodrigo Soares, Rafael Dix-Carneiro, Gabriel Ulyssea
October 2018|American Political Science Review|Tamar Mitts

From Isolation to Radicalization: Anti-Muslim Hostility and Support for ISIS in the West

October 2018|William G. Rich

Iran Is a Threat to the Banking System

October 2018|Brookings Report|Patricia Mosser, Jason Healey, Katheryn Rosen, Adriana Tache
October 2018|Journal of Conflict Resolution|Keren Yarhi-Milo, Joshua D. Kertzer, Jonathan Renshon
September 2018|International Organization|Tamar Mitts

Terrorism and the Rise of Right-Wing Content in Israeli Books

September 2018|Brookings Institution|Patricia Mosser, William B. English