I am an Emeritus Professor of Economics at Dongguk University, where I have taught courses on Korean economic history, among others. My research interests include economic growth, income and wealth inequality, and income redistribution. I played a leading role in compiling long-term economic statistics for Korea, culminating in the publication of The Historical Statistics of Korea (2022, co-edited). The results of my estimates on historical national accounts and income concentration are included in the Maddison Project Database and the World Inequality Database, respectively, as Korean data. I have authored numerous papers and books on the growth and distribution of the Korean economy, including The Korean Economy under Japanese Colonial Rule (2002) and The History of Economic Growth in Korea (2023).