Why Motherhood—Not Parenthood—Drives Inequality in Academic Careers
Paper Findings
- After the first child, men’s and women’s academic careers diverge sharply—even though they evolve similarly beforehand.
- Around one in three women leaves academia following motherhood, making exit—not slow progression—the central mechanism.
- Motherhood leads to persistent declines in tenure attainment and research output.
- Fatherhood has modest negative effects on academic employment, but no detectable impact on tenure or research productivity.
- The gap is not driven by preferences: instead, childcare responsibilities, mobility constraints, and competitive environments shape the divergence.
A large body of work has argued that children remain one of the central drivers of gender inequality. But this paper asks a more demanding question: what happens at the top of the skill distribution in a profession where advancement depends on sustained productivity, mobility, and competition? Using population-wide administrative data linked to publications and promotions, the authors show that the arrival of a first child marks a decisive turning point in academic careers—one that affects women and men in fundamentally different ways.
The key result is not simply that mothers publish less or progress more slowly. It is that motherhood changes who remains in academia at all. Following the birth of a child, roughly one in three women exits the academic track, generating a persistent gap in employment and, downstream, in tenure. Fathers also experience a decline in academic employment, but their chances of tenure and research productivity remain largely unaffected. Inequality, in this setting, is therefore not primarily about differential advancement within a common career path—it is about differential survival into that path.
What explains this divergence? The paper provides a clear answer. It is not preferences: men and women report similar career ambitions and attach similar value to advancement. Instead, the mechanism operates through constraints. Mothers assume a disproportionate share of childcare—especially the unpredictable forms that disrupt sustained work—while also facing reduced mobility in a profession where relocation is often essential. These constraints interact with institutional features: penalties are larger in more competitive departments and in environments without senior female role models. The implication is both simple and uncomfortable: inequality at the top is not only produced by differences in productivity or choice, but by how institutions amplify the unequal burden of care.
Ref: Cairo, S., Ivandić, R., Lassen, A.S. and Tartari, V. (2026) Parenthood and the career ladder: evidence from academia. Centre for Economic Performance Discussion Paper No. 2160. London School of Economics and Political Science.
Link to paper: https://cep.lse.ac.uk/pubs/download/dp2160.pdf
