1. "APEC Economies Beyond the Crisis: Trade and Investment", Presented at APEC Economic Committee Symposium, The Future of Asia Pacific Economies (Tokyo, December 6-7, 1999). (co-authored by Yun, Mikyung and Chanbeum Lee).   
2. "Economic Integration in Northeast Asia: Searching for a Feasible Approach", Presented at the International Conference by Japanse Society for International Economics(Osaka: Osaka Sangkyo University, October 24, 1999).   
3. "A Study on the Feasibility of Economic Integration in Northeast Asia", Presented at an international Seminar The Road to Greater Northeast Asian Economic Cooperation in the 21st Century, (Seoul: Shilla Hotel, October 1, 1999), organized by KIEP.   
4. "Korean Economy after the Crisis: Structural Reforms and New Directions towards Regionalism", Korea, a Strategic Partner in Asia, the International Seminar by Fundacion Chilena del Pacifico (Santiago, Chile: SOFOFA, August 24-25, 1999).   
5. "Impact of Asian Financial Crisis on Trade Pattern", presented in the 4th APEC Roundtable(May 26-27, 1998, Boston), co-organized by Brandeis University, ISEAS, and KIEP.   
6. "Impact of APEC's Open Regionalism", Appear in the 2nd chapter of 1997 APEC Economic Outlook, Singapore: APEC Secretariat, December 1997. Also presented in the conference organized by Asia-Pacific Economic Review(Sydney, Australia, August 29∼31, 1997).   
7. "Patterns of FDI between Europe and Korea", appear in Europe-East Asian Economic Relations, edited by Bak-Soo Kim, Seoul: KIEP, October 1997. Also presented in the 7th KIEP/Friedrich-Ebert- Stiftung International Seminar(Seoul, October 30-31, 1997).   
8. "The Economic Effects of APEC's Trade Liberalization", presented at the 4th Conference on Asia-Pacific Economic Cooperation, Seoul, October 29-30, 1996.   
9. "Study of the Emerging Trading Environment: Economic Implications for Korea", presented in the Asian Development Bank Conference Study of Emerging Trading Environment and Developing Asia (Manila, Philippines, August 29-30, 1996), (co-worked by Hak Kil Pyo and Kihwan Kim).