Essays on Human Capital, Fertility, and Child Development

This dissertation consists of two chapters. The first chapter studies children's skill formation technology while endogenizing the maternal age and child investments. I estimate the effect of a mother's age at childbirth on her child's health, skill level, educational attainment, and adulthood earnings. There is a tradeoff between delaying childbirth to provide a more secure economic environment for mother and child versus the potential negative biological consequences for a child of having an older parent. I quantify this tradeoff. The results indicate that a five-year decrease in the maternal age of educated women, ceteris paribus, results in over 0.50 std increase in the child’s skill level due to an increase in the child’s ability to acquire skills. However, if one adjusts child investment according to individuals’ wage profile conditional on reduced maternal age, the average child’s skill level decreases by 0.07 std. This reduction in children’s skill highlights the impact of lower inputs that children of younger mothers receive. The negative effect of foregone wages may be reduced through policy approaches. My policy analysis indicates implementing a two-year maternity leave policy that freezes mothers’ wages at the level before childbirth would reduce average maternal age at the first birth by about two years, while also increasing the average child’s skill level by about 0.22 std and future earnings by over 6%.

In chapter two, I study the impact of females' perceptions regarding their future fertility behavior on their human capital investments and labor market outcomes. I exploit a natural experiment to study the causal effect of fertility anticipation on individual's investments in human capital. I use the arguably exogenous variation in gender mix of children as an exogenous shock to the probability of further fertility. I document that having two children of the same gender is associated with about 5% lower wages for the mother compared to having two children of the opposite sexes. Mothers with same-sex children perceive themselves as more likely to bear one more child, and so less attached to the labor market, so invest less in human capital, and this is reflected in wages today.