Free DP Download 14 June 2022 - Long-Run Impacts of In-Utero Ramadan Exposure: Evidence from Administrative Tax Records

Tuesday, June 14, 2022

Timotej Cejka, Mazhar Waseem CEPR Discussion Paper No. 17176| April 2022

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 in-utero Ramadan exposure of individuals with their later life labor market outcomes. We find a robust negative effect of Ramadan exposure on earnings (a lower-bound estimate of around 2-3 percent). The exposed individuals are less likely to be in high-skilled occupations and less likely to be in the top of the income distribution. Using nationally representative survey data we show that our results are unlikely to be driven by selective timing of conception.

You can now watch a video where Mazhar Waseem tells Tim Phillips about this research.