The Mommy Track Divides: The Impact of Childbearing on Wages of Women of Differing Skill Levels

Elizabeth Ty Wilde, Lily Batchelder, David T. Ellwood

NBER Working Paper No. 16582
Issued in December 2010
NBER Program(s):   LS

This paper explores how the wage and career consequences of motherhood differ by skill and timing. Past work has often found smaller or even negligible effects from childbearing for high-skill women, but we find the opposite. Wage trajectories diverge sharply for high scoring women after, but not before, they have children, while there is little change for low-skill women. It appears that the lifetime costs of childbearing, especially early childbearing, are particularly high for skilled women. These differential costs of childbearing may account for the far greater tendency of high-skill women to delay or avoid childbearing altogether.

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