My research interests lie at the intersection of international security and international institutions. Specifically, I seek to understand international efforts to limit the tools with which humans kill, hurt, and threaten one another. I use a mixed methods approach to investigate three types of questions.

First, I examine the role of weapons governance in geopolitics. My book project considers why and how countries develop multilateral agreements to govern weapons. Distinguishing between great powers and smaller states, it shows how both types of states use such agreements to shape relations between states more broadly, with great powers using multilateral weapons governance to sustain the status quo and smaller states using it to challenge the status quo. I show how these different purposes lead to different framings, methods of building coalitions, choice of institutional formats, and ultimately, different agreements. In related work with Steven Ward (University of Cambridge), we assess how small states can mount revisionist challenges to international order, through a case study of the Treaty on the Prohibition of Nuclear Weapons. This research is published in the European Journal of International Relations.

Second, I use survey experiments to understand public opinion regarding nuclear weapons and international agreements. My research has examined Chinese public opinion regarding nuclear weapons (with Lincoln Hines, Georgia Institute of Technology, and published in Research & Politics) and the effectiveness of praising versus shaming on public support for joining international treaties (published in the Review of International Organizations). In ongoing research projects, I am using survey experiments to examine the potentially permissive effects of the nuclear taboo and assess public opinion in NATO countries regarding nuclear deterrence and NATO’s nuclear mission (with Steven Ward, University of Cambridge).

Finally, my research examines how participation in international institutions shapes countries’ preferences and policies. In work with Nina Obermeier (Kings College London), published in the Journal of Politics, we develop a new method for estimating the effect of participating in international organizations on states’ preference similarity.