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Baby Bumps in the Road: The Impact of Parenthood on Job Performance, Human Capital, and Career Advancement

Author

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  • Olivia J. Healy

    (Elon University)

  • Jennifer A. Heissel

    (Naval Postgraduate School and IZA)

Abstract

This paper explores whether and why a maternal child penalty to earnings would emerge even without changes in employment and hours worked. Using a matched event study design, we trace monthly changes in determinants of wages (job performance, human capital accumulation, and promotions). Data come from a usefully unusual setting with required multiyear employment and detailed personnel data: the U.S. Marine Corps. Mothers’ job performance initially declines, and gaps in promotion grow through 24 months postbirth. Fathers’ physical fitness performance drops somewhat but recovers. These patterns lead mothers to earn relatively lower wages, even absent changes in employment postbirth.

Suggested Citation

  • Olivia J. Healy & Jennifer A. Heissel, 2026. "Baby Bumps in the Road: The Impact of Parenthood on Job Performance, Human Capital, and Career Advancement," The Review of Economics and Statistics, MIT Press, vol. 108(4), pages 914-930, July.
    • Handle: RePEc:tpr:restat:v:108:y:2026:i:4:p:914-930
    DOI: 10.1162/rest_a_01405
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