His research focuses on empirical asset pricing, capital market, market microstructure, financial econometrics and corporate finance. His research has appeared in top-tier journals such as the Journal of Finance, the Journal of Banking and Finance, the Journal of Futures Markets, and other journals. In 2008 he published a book, “The Easiest Story about Finance”.
He won the Best Paper Award from the Joint Conference of Finance in Korea. He also won the Best Teaching Award from GSB Alumni Association at Seoul National University.