Ryu, Ki Eun is a Post-Doctoral Research Fellow at Jeju Peace Institute. She received a bachelor’s and a master’s degree in international relations from Seoul National University and she received a PhD degree in political science in 2020 from the University of Iowa. Her dissertation “Dynamics of International Treaty Diffusion” explores how diffusion models explain the spread of international multilateral treaties across countries. Her main research area is international law and treaties, especially on the diffusion of policies and treaties. She is also interested in the link between domestic politics and international behavior such as the relationship of regime type and treaty ratification/compliance. She recently published articles in Asian Survey and the Journal of Contemporary Politics.