environments across the two areas, we find remarkably consistent results: in families with two or more children, second-born boys … the evidence rules out differences in health at birth and the quality of schools chosen for children. We do find that …

Using birth certificates matched to schooling records for Florida children born 1992-2002, we assess whether family … gap in neonatal health. We conclude that the gender gap among black children is larger than among white children in … substantial part because black children are raised in more disadvantaged families …

employ data from the universe of children born in Florida between 1994 and 2002 and in Denmark between 1990 and 2001, which …