Social scientists theorize that the inverse relationship between socio-economic status and family size represents a trade-off between the quality and quantity of children. Evaluating this hypothesis empirically requires addressing the simultaneity of the quality and quantity decisions....

We estimate the dual effects of immigration and obesity on labor market outcomes in the UK using the British Household Panel Survey. We find support for the healthy immigrant hypothesis and evidence that immigrants' weights increase with time in the UK. While overweight and obese men enjoy a...

This is the first study that uses a direct measure of skyglow, an important aspect of light pollution, to examine its impact on infant health at birth. We find evidence of reduced birth weight, shortened gestational length and even preterm births. Specifically, increased nighttime brightness,...