In the Netherlands, an immediate baby boom followed the end of WWII and the baby bust of the 1930s. I propose a novel application of the bunching methodology to examine whether the war shifted the timing of fertility or changed women's completed fertility. I disaggregate the number of births by...

In the Netherlands, an immediate baby boom followed the end of WWII and the baby bust of the 1930s. I propose a novel application of the bunching methodology to examine whether the war shifted the timing of fertility or changed women's completed fertility. I disaggregate the number of births by...

This paper explores the contribution of biological factors in explaining gender differences in educational performance, with a particular focus on the role of prenatal testosterone. We exploit the fact that prenatal testosterone is hypothesized to transfer in-utero from a male twin to his twin...

This paper explores the contribution of biological factors in explaining gender differences in educational performance, with a particular focus on the role of prenatal testosterone. We exploit the fact that prenatal testosterone is hypothesized to transfer in-utero from a male twin to his twin...

Using data on over 420,000 first time Dutch mothers, we examine the effects of postpartum antidepressant use on a wide range of maternal outcomes including further treatment for severe mental illness, labor market outcomes, and family formation. We exploit rules which state that Dutch general...

This paper explores the contribution of biological factors in explaining gender differences in educational performance, with a particular focus on the role of prenatal testosterone. We exploit the fact that prenatal testosterone is hypothesized to transfer in-utero from a male twin to his twin...

This paper explores the contribution of biological factors in explaining gender differences in educational performance, with a particular focus on the role of prenatal testosterone. We exploit the fact that prenatal testosterone is hypothesized to transfer in-utero from a male twin to his twin...

We investigate how religious beliefs affected the take up of the birth control pill and impacted women’s outcomes using the 1970 liberalization of oral contraceptives in the Netherlands. We first document a massive and immediate drop in fertility among minor women, aged 21 or younger, for whom...

The last 40 years have seen huge innovations in computing technology and data availability. Data derived from millions of administrative records or by using (as we do) new methods of data generation such as text mining are now common. New data often requires new methods, which in turn can...