Bachelor, Seoul National University, 1982. Master of Arts, Seoul National University, 1984. Doctor of Philosophy, University Pennsylvania, 1991.
First chief research fellow, Hanhwa Research Center, Seoul, 1994-1996; professor, Kookmin U., Seoul, since 1996. American advisory member Ministry of Finance and Economy.
Member American Political Science Association, International Political Science Association, Korean Political Science Association.
Married Young-Mee Lym, May 30, 1983. 1 child, Jae-June.