3
For example, studies in the US have found a persistent wage penalty for motherhood
(Waldfogel, 1997; Budig & England, 2001; Avellar & Smock, 2003; Lundberg & Rose, 2000;
Anderson, 2003). Using National Longitudinal Survey of Youth data on mothers aged 14-21 in
1979, Budig and England (2001) found a wage penalty of 7 percent for each child; the penalty
was larger for married women than for unmarried women. A cross-cohort comparison that also
used National Longitudinal Survey of Youth data found that the penalty has not diminished over
time, even after controlling for human capital and other unobserved heterogeneity (Avellar &
Smock, 2003).
In identifying causes of this penalty, studies point to women’s career break after
childbirth, segregation into low-status jobs and part time jobs, shorter work hours, and,
importantly, disproportionate share of family responsibilities in the context of dual-earner
couples (Jacobs & Gornick, 2002; Jacobs, 1989, 2001; Arun, Arun, & Borooah, 2004; Reid,
2002; Cohen & Huffman, 2003). Noonan (2001) tests another explanation for the negative
relationship between housework and wages for women by focusing on the fact that, typically,
women and men perform different type of household chores. She found that only time spent on
“female” household chores had a negative effect on wages.
Research has highlighted similar barriers to female employment in European countries
(Sigle-Rushton & Waldfogel, 2004; Davies, Elias, & Pierre, 2003). Trappe and Rosenfeld
(2000) found that in former West Germany, being a parent had positive effects on men’s
earnings, but strong negative effects on women’s wages, whereas in the former East Germany,
some young women balanced family and employment by taking jobs below their qualifications,
and this reduced their earnings.
In East Asia, research outside of China has shown a rapid increase in women’s