Keisuke Nakashima is a research associate in the CSIS Global Aging Initiative. His research interests include the economics of population aging and social security reform, especially in East Asia. He holds an M.A. in international relations from the Maxwell School of Citizenship and Public Affairs at Syracuse University and a B.A. in Anglo-American studies from Kobe City University of Foreign Studies in Kobe, Japan. He has also studied at the Paul Nitze School of Advanced International Studies at Johns Hopkins University and at Newbury College. He is fluent in English and Japanese.