Research
Economics of Information Technology
"Information Technology, Creative Destruction, and Firm-Specific Volatility," (with Jung-Wook Kim, Jason Lee, and Randall Morck), June 2005. An earlier version of this paper was circulated under the title "Patterns of Comovement: The Role of Information Technology in the U.S. Economy," NBER Working Paper No. 10937, November 2004.
"Substitutability and Accumulation of Information Technology Capital in U.S. Industries," (with Sung-Bae Mun), Southern Economic Journal, 72(4), April 2006.
"The Structure of Adjustment Costs in Information Technology Investment," (with Sung-Bae Mun), Economics Bulletin, 5(4), July 2005.
"Information Technology and the Demand for Educated Workers: Disentangling the Impacts of Adoption versus Use," Review of Economics and Statistics, February 2003.
"Decomposing Productivity Growth in the US Computer Industry," (with M. Ishaq Nadiri), December 2005. An earlier version of this paper is available as NBER Working Paper No. 9267, October 2002.
"The Impact of Information Technology on Productivity Growth: Evidence from Industry-Level Data for Five OECD Countries," February 2002.
"Can Information Technology Explain Deceleration
and Acceleration in Productivity Growth?" January 2001.
Labor Economics
"An Instrumental Variable Estimate of Fertility Effect on the Labor Force Participation of Married Women," (with Jeungil Oh), Applied Economics Letters, 9(10), August 2002.
"Why Do Married
Men Earn More: Productivity or Marriage Selection?" (with Injae
Lee), Economic Inquiry, 39(2), April 2001.
Business Week (September 17, 2001):
Review on this paper.
Teaching
Economics 240 Industrial Organization Spring 2006
Economics 249 Statistics: Economics and Business Spring 2006
Links
Links to Information
Technology Web Sites