Associate Editor, Journal of Human Capital (U of Chicago Press), 2011.1 - Present
Editorial Board, Asian Journal of Law and Economics, 2010 - Present
편집위원, 지식재산연구, 2010 - 2012.12
편집위원장, 응용경제, 2012.1 - 2014.6
편집의원, 노동정책연구, 2008.1-2008.12
편집의원, 계량경제학보 (Journal of Economic Theory and Econometrics), 2007-2008
Some Working Papers
"Remarriage and Human Capital Investment in Childre", submitted.
"Research Teamwork in Technology Race"
"Teams in R&D: Evidence from US Inventor Data" (with Gerald Marschke)
"Intergenerational Occupational Mobility"
"Labor Mobility and Its Effect on Productivity: Case of Korean Inventors"
"Patent Productivity of Korean Inventors"