I am an associate professor in the Department of Political Science at the University of California, Berkeley. My research and teaching interests lie at the intersection of international conflict and cooperation. In my scholarly work, I pursue two related lines of inquiry. First, I am interested in the design and effects of security institutions and I conduct research on two substantive areas of security cooperation: conflict management agreements and military alliances. I want to understand which types of agreements work, why they are effective, when they are more or less likely to succeed, and why they are designed the way they are. Second, I study the effect of domestic politics on countries’ foreign policy behavior and especially their willingness and ability to pursue international cooperation. My work has appeared in the American Journal of Political Science, International Organization, Journal of Politics, International Studies Quarterly, Journal of Conflict Resolution, Journal of Peace Research, and Conflict Management and Peace Science. I also recently completed a large data collection effort on changes in leaders’ supporting coalitions (CHISOLS) funded by the National Science Foundation.