Journal of Population Economics

, Volume 24, Issue 3, pp 1071–1100 | Cite as

The effects of motherhood timing on career path

Original Paper

Abstract

This paper estimates the effects of motherhood timing on female career path, using biological fertility shocks to instrument for age at first birth. Motherhood delay leads to a substantial increase in earnings of 9% per year of delay, an increase in wages of 3%, and an increase in work hours of 6%. Supporting a human capital story, the advantage is largest for college-educated women and those in professional and managerial occupations. Panel estimation reveals both fixed wage penalties and lower returns to experience for mothers, suggesting that a “mommy track” is the source of the timing effect.

Keywords

Fertility timing Female wages Family gap 

JEL Classification

J31 J13 K31 

Notes

Acknowledgements

I thank Susan Athey, B. Douglas Bernheim, John Pencavel, and Antonio Rangel for their excellent advising. I am grateful to the editor and anonymous referees of this journal, to Eli Berman, Katie Carman, Victor Fuchs, Larry Katz, Edward Lazear, Laura Lindsey, David Matsa, Carmit Segal, Marianne Simonsen, Scott Stern, Ed Vytlacil, and Geoff Warner, and to seminar participants at Arizona, Duke, McGill, Michigan State, Queens, UC-San Diego and Virginia for helpful comments. The Koret Foundation and the Stanford Institute for Research on Women and Gender provided generous financial support.

Supplementary material

148_2009_296_MOESM1_ESM.pdf (61 kb)
Supplementary Figure(PDF 48 KB)

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Department of EconomicsUniversity of VirginiaCharlottesvilleUSA

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