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Marriage, Motherhood and Wages: Recent Evidence


  • Petra Bradler
  • Chun Yee Wong


Using data from the 1982 National Longitudinal Survey for Young Women (NLSYW) we replicate Korenman and Neumark's (K&N) (1992) study "Marriage, Motherhood and Wages" and obtain similar OLS estimates. Applying IV estimation to account for the endogeneity of experience and tenure, K&N find evidence in favor of the endogeneity of and obtain more negative coefficients for the children coefficients. In the IV estimation we obtain experience and tenure coefficients which are not significantly different from the OLS estimates, hence rejecting the endogeneity. As in K&N's study, our first difference specification exhibits signs of heterogeneity bias. Sample selectivity bias is marginally evident in K&N's paper, whereas we do not find evidence in favor of it. We furthermore examine the development of wage differentials over time by looking at more recent NLSYW surveys (1987 and 1991). We find that as women age, experience, tenure and education become better predictors for wage differentials among women with different marital and fertility status.

Suggested Citation

  • Petra Bradler & Chun Yee Wong, 1996. "Marriage, Motherhood and Wages: Recent Evidence," Working Papers ecpap-96-05, University of Toronto, Department of Economics.
  • Handle: RePEc:tor:tecipa:ecpap-96-05

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    References listed on IDEAS

    1. Sanders Korenman & David Neumark, 1992. "Marriage, Motherhood, and Wages," Journal of Human Resources, University of Wisconsin Press, vol. 27(2), pages 233-255.
    2. Moon-Kak Kim & Solomon W. Polachek, 1994. "Panel Estimates of Male-Female Earnings Functions," Journal of Human Resources, University of Wisconsin Press, vol. 29(2), pages 406-428.
    3. Blackburn, McKinley L & Neumark, David, 1993. "Omitted-Ability Bias and the Increase in the Return to Schooling," Journal of Labor Economics, University of Chicago Press, vol. 11(3), pages 521-544, July.
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    More about this item

    JEL classification:

    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
    • J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
    • J12 - Labor and Demographic Economics - - Demographic Economics - - - Marriage; Marital Dissolution; Family Structure


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