The Effect of Unions on the Distribution of Wages: Redistribution or Relabelling?

Author
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Abstract

This paper re-examines the connection between unions and wage
inequality, focussing on three questions: (1) How does the union wage
effect vary across the wage distribution? (2) What is the effect of
unionism on the overall variance of wages at the end of the 1980s?
(3) How much of the increase in the variance of wages over the 1970s
and 1980s can be attributed to changes in the level and distribution
of union coverage?
Cross-sectional union wage gap estimates vary over the wage
distribution, ranging from over 30 percent for lower wage workers to
-10 percent for higher wage workers. Using a longitudinal estimation
technique that accounts for misclassification errors in union status,
I find that this variation represents a combination of a truly larger
wage effect for lower-paid workers, and differential selection
biases.
The estimated effect of unions on the variance of wages in the
late 1980s is relatively modest. Nevertheless, changes in the level
and pattern of unionism -- particularly the decline of unions among
lower wage workers -- have been an important component of the growth
in wage inequality. Changes in unionization account for one-fifth of
the increase of the variance of adult male wages between 1973 and
1987.

Year of Publication
1991
Number
287
Date Published
07/1991
Publication Language
eng
Citation Key
8079
URL
Working Papers