Research has shown a strong negative correlation between birth order and cognitive test scores, IQ, and educational outcomes. We ask whether birth order differences in health are present at birth using matched administrative data for more than 1,000,000 children born in Denmark between 1981 and...

This paper studies a unique traffic law enforcement campaign in Germany and its impact on road safety. Key features of the campaign are (1) repeated one-day lasting massive speed limit monitoring (so called Blitzmarathons) and (2) a media campaign that informs the public in advance about the...

I examine how one central aspect of the childhood family environment - sibling gender composition - affects women's gender conformity, measured through their choice of occupation and partner. Using Danish administrative data, I causally estimate the effect of having a second-born brother...

I examine how one central aspect of the childhood family environment - sibling gender composition - affects women's gender conformity, measured through their choice of occupation and partner. Using Danish administrative data, I causally estimate the effect of having a second-born brother...

I examine how one central aspect of the family environment - sibling sex composition - affects women's gender conformity. Using Danish administrative data, I causally estimate the effect of having a second-born brother relative to a sister for first-born women. I show that women with a brother...

Barker’s fetal origins hypothesis suggests a strong relationship between in utero conditions, health and overall child development after birth. Using nationally representative population survey, this paper analyzes the impact of rainfall on early child health in rural India. We find that...

Research has shown a strong negative correlation between birth order and cognitive test scores, IQ, and educational outcomes. We ask whether birth order differences in health are present at birth using matched administrative data for more than 1,000,000 children born in Denmark between 1981 and...