More able parents tend to have more able children. While few would question the validity of this statement, there is … estimated elasticity of intergenerational transmission of income of approximately .2. -- Ability ; intergenerational mobility …

using scores from IQ tests taken outside of school, at the time of military enrolment, and measured when students are around …

using scores from IQ tests taken outside of school, at the time of military enrolment, and measured when students are around …

of children from poorer families. -- birth weight ; twins ; education ; IQ ; earnings …