Using detailed information on employment history and training on-the-j
ob from the 1976 and 1985 interviews of the Panel Study of Income Dyna
mics, I examine how differences in these factors account for the wage
gap between White men and White women. The percent of the wage gap exp
lained by differences in the explanatory variables increased slightly
during this period-from 37 percent in 1976 to 42 percent in 1985. Diff
erences in average years of tenure, total years employed full time, an
d years out of the labor force since leaving school accounted for almo
st all of the explained difference. However, over 50 percent of the wa
ge gap remains unexplained.