This paper explores the relationship between kinship institutions and sex ratios in India at the turn of the twentieth century. Since kinship rules varied by caste, language, religion and region, we construct sex-ratios by these categories at the district-level using data from the 1901 Census of...

If two-parent care has different consequences for the reproductive success of sons and daughters, then natural selection may favor adjustment of the sex ratio at birth according to circumstances that forecast later family structure. In humans, this partnership status hypothesis predicts fewer...

A combination of changing migration patterns and US immigration restrictions acted to shift the male-female balance in many ethnic groups in the early 20th Century. I use this variation to study the consequences of changing sex ratios for the children of immigrants. Immigrant sex ratios affected...