Director of Development Research Divsion, KDI 2013-present
Director of Develoment Resarch Team, KDI School of Pulic Policy and Management, 2013
Director of Capacity Building Team, KDI School of Public Policy and Management, 2011-2012
Associate Professor, KDI School of Public Policy and Management, 2011-present
National Graduate Institute for Policy Stuydies (GRIPS), Associate Professor, 2010-2011, djunct Associte Professor, 2011-2013
Foundation for AdvancedStudies on International Development (FASID), Faculty Fellow, 2011-2011
Institute of Empirical Macroeconomics of the Federal Reserve Bank of Minneapolis, Visiting Scholar, June 2007
Vanderbilt University, Assistant Professor, Economics, Department, 2007-2010
UCLA, Visiting Scholar, California Center for Population Research and Economics Department, fall 2005.
University of Chicago, Visiting Assistant Professor, Population Research Center and Economics Department, Fall 2003.
University of Southern California, Assistant Professor, Economics Department, 2000-2007.
World Bank, Consultant Economist, 1998
University of Chicago, Lecturer, Economics Department, 1998-2000.
Economic Growth and Development
Finance and Growth
Demography and Labor
Firm Dynamics and International Trade
Economic Growth and International Development
Jont Cneter for Poverty Research(Northwestern University and the University of Chicago) Funded Graduate Fellow (1999-2000) and Research Affiliate (since 2001).
Andrew W. Mellon Foundation Fellowship, 1998-1999.
William and Flora Hewlett Foundation Fellowship, 1997-1998
Korea Foundation for Advanced Studies Fellowship 1993-1997.
Alumni President Prize and Summa Cum Laude, Seoul National University, 1990.
Micro Suvey for Growth, Inequality, and Organizational Design, Population Research Ce nter at the University of Chicago, 1995-2000, Questionaaire Design and Data Analysis PI: Professor Robert M. Townsend at the University of Chicago.
Survey of Financial Institutions and Household Characteristics in Thai Villages, 1998, PI: Professor Robert M. Townsend at the University of Chicago.
Microeconomics of Income Distribution Dynamics in East Asia and Latin America, Joint IDB-World Bank Project, 1998-2000, PI: Francois Bourguignon at the World Bank.
Cambodian Knowledge Sharing roram (KSP) in charge of Skill Need Assessment and Forecast of Cambodian Labor Market Project, 2012-2013.
Exploration on Advancing the Korean Devleopment Cooperation System by Introducing Development Fiannce, Economic Development Cooperation Fund at Korea Exim Bank,2013.
Exploration of Current Status of korean ODA and Forecasting of Appropriate Size of Korean ODA for National Budget Plan, 2013-2017 Budget Planning Task Force of Korean Government, Division of Unification and Foreign Affairs, 2013.
Studies on Designing Korean Approaches to Official Development Assistance, Economic Development Cooperation Fund at Korea Exim Bank, 2012.
A Theory of Firm and Macroeconomic Dynamics of International Trade, Japan Society for Promotion of Science (JSPS) Grantis-in-Aid for Scientific Research (Kakenhi) Challenging Exploratory Research Category, Grant #23653053, FY 2011-2012.