TY  - JOUR
AU  - Card,David
AU  - Lemieux,Thomas
TI  - Wage Dispersion, Returns to Skill, and Black-White Wage Differentials
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 4365
PY  - 1993
Y2  - May 1993
UR  - http://www.nber.org/papers/w4365
L1  - http://www.nber.org/papers/w4365.pdf
N1  - Author contact info:
David Card
Department of Economics
549 Evans Hall, #3880
University of California, Berkeley
Berkeley, CA  94720-3880
Tel: 510/642-5222
Fax: 510/643-7042
E-Mail: card@econ.berkeley.edu

Thomas Lemieux
Department of Economics
University of British Columbia
#997-1873 East Mall
Vancouver, BC V6T 1Z1
CANADA
Tel: 604/822-2092
Fax: 604/822-5915
E-Mail: thomas.lemieux@ubc.ca
AB  - During the 1980s wage differentials between younger and older workers and between more and less educated workers expanded rapidly. Wage dispersion among individuals with the same age and education also rose. A simple explanation for both sets of facts is that earnings represent a return to a one-dimensional index of skill, and that the rate of return to skill rose over the decade. We explore a simple method for estimating and testing 'single index' models of wages. Our approach integrates 3 dimensions of skill: age, education, and unobserved ability. We find that a one-dimensional skill model gives a relatively successful account of changes in the structure of wages for white men and women between 1979 and 1989. We then use the estimated models for whites to analyze recent changes in the relative wages of black men and women.
ER  -