TY - JOUR T1 - The Long-Run Effects of Cesarean Sections JF - Journal of Human Resources JO - J Hum Resour DO - 10.3368/jhr.58.2.0719-10334R1 SP - 0719-10334R1 AU - Ana Costa-Ramón AU - Mika Kortelainen AU - Ana Rodríguez-González AU - Lauri Sääksvuori Y1 - 2020/10/12 UR - http://jhr.uwpress.org/content/early/2020/10/14/jhr.58.2.0719-10334R1.abstract N2 - This paper analyzes the long-term effects of potentially avoidable cesarean sections on children’s health. Using Finnish administrative data, we document that physicians perform more unplanned C-sections during their regular working hours on days that precede a weekend or public holiday and use this exogenous variation as an instrument for C-sections. We supplement our instrumental variables results with a differences-in-differences estimation strategy that exploits variation in birth mode within sibling pairs and across families. Our results suggest that avoidable unplanned C-sections increase the risk of asthma, but do not affect other immune-mediated disorders previously associated with C-sections. ER -