TY  - JOUR
AU  - Feenstra,Robert
AU  - Hanson,Gordon
TI  - Global Production Sharing and Rising Inequality: A Survey of Trade and Wages
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 8372
PY  - 2001
Y2  - July 2001
UR  - http://www.nber.org/papers/w8372
L1  - http://www.nber.org/papers/w8372.pdf
N1  - Author contact info:
Robert C. Feenstra
Department of Economics
University of California, Davis
One Shields Avenue
Davis, CA  95616
Tel: 530/752-7022
Fax: 530/752-9382
E-Mail: rcfeenstra@ucdavis.edu

Gordon H. Hanson
IR/PS 0519
University of California, San Diego
9500 Gilman Drive
La Jolla, CA  92093-0519
Tel: 858/822-5087
Fax: 858/534-3939
E-Mail: gohanson@ucsd.edu
AB  - We argue that trade in intermediate inputs, or 'global production sharing,' is a potentially important explanation for the increase in the wage gap between skilled and unskilled workers in the U.S. and elsewhere. Using a simple model of heterogeneous activities within an industry, we show that trade in inputs has much the same impact on labor demand as does skill-biased technical change: both of these will shift demand away from low-skilled activities, while raising relative demand and wages of the higher skilled. Thus, distinguishing whether the change in wages is due to international trade, or technological change, is fundamentally an empirical rather than a theoretical question. We review three empirical methods that have been used to estimate the effects of trade in intermediate inputs and technological change on wages, and summarize the evidence for the U.S. and other countries.
ER  -