Evidence on the Causes of the Rising Dispersion of Relative Wages

In this paper, a neoclassical model of interindustry wage dispersion is derived and used to examine explicitly the fundamental role of microeconomic variables in determining relative wage movements. The empirical results demonstrate that the variance of labor quality and capital intensities across sectors are the primary determinants of the movement of the dispersion of relative wages within the manufacturing sector in the postwar period. Although the relative wage structure exhibits some response to unemployment, it is not sensitive to changes in inflation. The macro variables were also of limited quantitative importance in explaining changes in the relative wage structure.