Thematic interests
Democracy (democratization, democratic backsliding, dis/mis-information, voter attitudes, polarization)
Institutions (accountability, executive-legislative relations, political parties, elections, malapportionment)
Science of Science (development of political science)
Regional interests
Southeast Asia
Philippines
East Asia
Japan
Academic Appointments
2025-2027 President, International Political Science Association
2023-2025 President-Elect, International Political Science Association
2022-2023 President, Japan Association for Comparative Politics
2011-present Professor, Faculty of Law, Keio University
2009-2011 Visiting scholar, Center for Democracy, Development, and the Rule of Law (CDDRL), Stanford University
2006-2010 Associate Professor, Faculty of Law, Keio University
2004-2006 Assistant Professor, Faculty of Law, Keio University
Education
University of California, San Diego, U.S.A.., Ph.D. in International Affairs (2005)
Institute of Social Studies, the Netherlands, M.A. in Development Studies (1993)
Keio University, Japan, B.A.in Law (1991)
Recent Articles
ORCID https://orcid.org/0000-0002-5324-3204
リサーチマップ https://researchmap.jp/read0121497
Recent Projects
Democracy and Disinformation in East Asia
Recent Books
Yuko Kasuya (ed.) DecolonizationandRegimeChange in Asia, London: Springer, 2025.
Netina Tan and Yuko Kasuya (eds.) Handbook of Autocratizationin Southeast Asia, London: Routledge,2025.
根本敬・粕谷祐子 (編)『アジアの独裁と「建国の父」』彩流社, 2024.
粕谷祐子 (編) 『アジアの脱植民化と体制変動』 白水社, 2022.