International Knowledge Flows: Evidence from an Inventor-Firm Matched Data Set

39 Pages Posted: 6 Dec 2006 Last revised: 29 Oct 2014

See all articles by Jinyoung Kim

Jinyoung Kim

Korea University - Department of Economics

Sangjoon Lee

Alfred University

Gerald Marschke

University at Albany - Department of Economics; National Bureau of Economic Research; Institute for the Study of Labor (IZA); Harvard Law School, Labor & Worklife Program

Date Written: November 2006

Abstract

We describe the construction of a panel data set from the U.S. patent data that contains measures of inventors' life-cycle R&D productivity--patents and patent citations. We match the data set to information on the U.S. pharmaceutical and semiconductor firms for whom they work. In this paper we use these data to examine the role of research personnel as a pathway for the diffusion of ideas from foreign countries to U.S. innovators. In particular, we find in recent years an increase in the extent that U.S. innovating firms collaborate with or employ researchers with foreign experience. This increase appears to work primarily through an increase in U.S. firms' employment of foreign-residing researchers; the fraction of research-active U.S. residents with foreign research experience appears to be falling, suggesting that U.S. pharmaceutical and semiconductor firms are increasingly locating operations in foreign countries to employ such researchers, as opposed to such researchers immigrating to the U.S. to work. In addition, we investigate which U.S. firms conducting R&D build upon innovations originating abroad. We find that employing or collaborating with researchers who have research experience abroad seems to facilitate the use of output of non-U.S. R&D. We also find that in the semiconductor industry smaller and older firms, and in the pharmaceutical industry, younger firms are more likely to access foreign R&D output.

Suggested Citation

Kim, Jinyoung and Lee, Sangjoon and Marschke, Gerald R., International Knowledge Flows: Evidence from an Inventor-Firm Matched Data Set (November 2006). NBER Working Paper No. w12692. Available at SSRN: https://ssrn.com/abstract=944180

Jinyoung Kim (Contact Author)

Korea University - Department of Economics ( email )

1 Anam-dong 5 ka
Seoul, 136-701
Korea

Sangjoon Lee

Alfred University ( email )

College of Business
1 Saxon Drive
Alfred, NY 14802
United States
607-871-2434 (Phone)

Gerald R. Marschke

University at Albany - Department of Economics ( email )

BA 110
1400 Washington Ave.
Albany, NY 12222
United States
518-437-3755 (Phone)
518-442-5298 (Fax)

National Bureau of Economic Research ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States
617-588-0301 (Phone)

Institute for the Study of Labor (IZA) ( email )

P.O. Box 7240
Bonn, D-53072
Germany

Harvard Law School, Labor & Worklife Program ( email )

125 Mt. Auburn St., 3rd Floor
Cambridge, MA 02138
United States

Register to save articles to
your library

Register

Paper statistics

Downloads
25
Abstract Views
759
PlumX Metrics