Child stunting in India exceeds that in poorer regions like sub-Saharan Africa. Data on over 168,000 children show that, relative to Africa, India's height disadvantage increases sharply with birth order. We posit that India’s steep birth order gradient is due to favoritism toward eldest sons, which affects parents' fertility decisions and resource allocation across children. We show that, within India, the gradient is steeper for high-son-preference regions and religions. The gradient also varies with sibling gender as predicted. A back-of-the-envelope calculation suggests that India's steeper birth order gradient can explain over one-half of the India-Africa gap in average child height.

Research on intrahousehold decision-making generally finds that fathers have more bargaining power than mothers, but mothers put more weight on children's well-being. This suggests a tradeoff when targeting policies to improve child health: fathers have more power to change household behavior in ways that improve child health, but mothers might have a stronger desire to do so. This paper compares health classes in Uganda that enrolled either mothers or fathers. We find that educating mothers leads to greater adoption of health-promoting behaviors by the household. In addition, educating one parent leads to positive spillovers on the other spouse's health behaviors.