Motherhood Penalty Hits Women in Academia the Hardest

Eight years after giving birth, women are 29% less likely to remain employed at universities, according to a new Danish study. The findings suggest that the heaviest motherhood penalty may be paid by women in academia.

More than two decades ago, researchers coined the term motherhood penalty to describe the systemic losses women often experience after becoming mothers. These losses include lower pay, fewer opportunities, missed promotions and reduced access to important projects — all rooted in the persistent assumption that women remain the primary caregivers in a family. Because of this, many employers still perceive mothers as less reliable or less committed employees. The term motherhood penalty captures the professional consequences of these biases.

How severe is the motherhood penalty in Europe?

Since then, researchers around the world have tried to quantify the many ways women are penalized professionally after having children. A 2024 U.S. study found that mothers lose an average of $19,700 in income during the first year after childbirth. Across Europe, each additional child reduces women’s earnings by approximately 4 to 10 percent over the following eight years. In the U.K., mothers are still earning less on their child’s fifth birthday than they did before giving birth.

The motherhood penalty is not equally severe everywhere. Nordic countries, which have spent years implementing policies aimed at reducing gender inequality, report the lowest motherhood penalty indexes. Across Europe, the index currently ranges from 21 to 61, with the largest gaps found in Austria and Germany. Serbia falls somewhere in the middle. And just as the motherhood penalty varies from country to country, it also affects professions differently. So who is affected the most?

Women in academia face the highest motherhood penalty

A major study conducted in Denmark revealed another important pattern: women in academia appear to pay the highest price for motherhood. Researchers analyzed data from more than 13,000 parents who enrolled in Ph.D. programs at Danish universities between 1996 and 2017. All had their first child after the first year of doctoral studies. The researchers then linked these records with publication histories from a large citation database and responses from a 2017 survey covering career ambitions, work-life balance and childcare responsibilities.

The results revealed a striking gender divide. Eight years after the birth of a first child, women were 29% less likely to still be employed at a university compared to women without children who had similar academic profiles. Among men who became fathers, the decline was 14%. Mothers who left academia also experienced a 12% drop in earnings and were less likely to work at research institutes or laboratories. According to the authors, this suggests that many women are leaving not only universities, but scientific research altogether.

Even when mothers remained in academia, their chances of advancement were significantly lower. The likelihood of obtaining tenure dropped sharply: three to four years after the birth of a first child, women’s chances of securing a permanent academic position were 35% lower. A similar pattern appeared in scientific publishing. Fathers maintained roughly the same publication pace after becoming parents, while mothers experienced a substantial decline. Eight years after childbirth, mothers had, on average, 31% fewer published papers than fathers.

Why is academia hit so hard?

Researchers believe the main reason is that the most critical years for building an academic career overlap almost perfectly with the years when women are most likely to become mothers. In academia, the greatest professional pressure falls between the late twenties and late thirties — the period when researchers finish Ph.D.s, publish key papers, build international collaborations, apply for grants and compete for tenure-track positions. Unfortunately, this is also the life stage when many women have their first child.

At the same time, academia is one of the professions where continuous professional visibility is essential. Researchers who publish less frequently or become less visible at conferences for several years quickly lose competitiveness. Even short interruptions can have long-term consequences, causing scientists to lose momentum, funding opportunities and research grants. Pausing academic work is especially difficult because experiments, longitudinal studies, fieldwork and international projects continue on fixed timelines that do not pause for parental leave. If a researcher steps away from a project for a year, key papers may be published, new teams formed and grant opportunities distributed without her involvement.

What makes the findings especially striking is that these effects remain strong even in countries such as Denmark and Sweden, which have advanced parental support systems and where fathers are expected to share childcare responsibilities. This suggests that the problem is not only about laws or public policies, but also about the very structure of academic careers — where even a few years of reduced productivity can permanently alter a professional trajectory.

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