This study investigates how many hours must be worked per week in orde
r for workers in different race and gender groups to receive a high-ho
urs (full-time) wage premium. An analysis of 1989 Current Population S
urvey data shows that across occupations, both white and black men rec
eived a full-time wage premium for working at least 33 hours per week,
whereas white women had to work at least 37 hours and black women at
least 39 hours to receive the premium. Controlling for occupation chan
ges the threshold for black women to 33 hours, but does not change the
results for the other groups. The authors find that the observed diff
erences account for, at most, two percentage points of the wage differ
entials across race and gender.