TY  - JOUR
AU  - Keller,Wolfgang
TI  - Are International R&D Spillovers Trade-Related? Analyzing Spillovers Among Randomly Matched Trade Partners
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 6065
PY  - 1997
Y2  - June 1997
UR  - http://www.nber.org/papers/w6065
L1  - http://www.nber.org/papers/w6065.pdf
N1  - Author contact info:
Wolfgang Keller
Department of Economics
University of Colorado-Boulder
Boulder, CO 80309-0256
Tel: 303/735 5507
Fax: 303/492 8960
E-Mail: Wolfgang.Keller@colorado.edu
AB  - In this paper, I analyze recent findings by Coe and Helpman (1995) on trade-related international R&D spillovers.  A Monte Carlo based robustness test is proposed which compares the elasticity of domestic productivity with respect to foreign R&D estimated by Coe and Helpman with an elasticity which is based on counterfactual international trade patterns.  I show that also these randomly created trade patterns give rise to positive international R&D spillover estimates, which are larger and explain more of the variation in productivity across countries than if  true' bilateral trade patterns are employed.  The finding casts doubt on the claim that patterns of international trade are important in driving R&D spillovers.
ER  -