Using Ramadan fasting as a natural experiment, we estimate the long-run impacts of in-utero health and nutrition shocks on adult outcomes. We exploit administrative tax return data comprising the universe of income tax returns filed in Pakistan during 2007–2009. The data allow us to link...

Fertility has a strong biological component generally ignored by economists. Using the UK Biobank, we analyze the extent to which genes, proxied by polygenic scores, and the environment, proxied by early exposure to the contraceptive pill diffusion, affect age at first sexual intercourse, age at...

We examine how the introduction of smallpox vaccination affected early-life mortality and fertility in Sweden during the first half of the 19th century. We demonstrate that parishes in counties with higher levels of smallpox mortality prior to the introduction of vaccination experienced a...

This paper reconstructs infant and child sex ratios, the number of boys per hundred girls, in Europe circa 1880. Contrary to previous interpretations arguing that there is little evidence of gender discrimination resulting in excess female mortality in infancy and childhood, the results suggest...

Based on anecdotal evidence on girls' inferior status and the analysis of sex ratios, this article argues that son preference resulted in gender discriminatory practices that unduly increased female mortality rates in infancy and childhood in Greece during the late-19th and early-20th century....

Relying on longitudinal micro data from a Spanish rural region between 1750 and 1950, this article evidences that families mortally neglected a significant fraction of their female babies. On the one hand, baptism records exhibit exceptionally high sex ratios at birth, especially during the 19th...

Childhood vaccines can increase population growth in the short term by improving the survival rates of young children. Over the long run, reductions in child mortality rates are associated with lower demand for children and fertility rates (known as "demographic transition"). Vaccines can...

Fertility has a strong biological component generally ignored by economists. Using the UK Biobank, we analyze the extent to which genes, proxied by polygenic scores, and the environment, proxied by early exposure to the contraceptive pill diffusion, affect age at first sexual intercourse, age at...

We study the effect of maternal dengue infections on birth outcomes using linked administrative records from Brazil estimating maternal fixed-effect specifications. In contrast to previous studies, we find robust evidence for the negative effect of dengue infections on birth weight (BW). The...

We review the foundations of the economic development-contraception nexus, focusing on the pathways through which economic factors drive contraceptive adoption and change. We investigate the channels through which the relationship between economic development and contraceptive dynamics are...