The Impact of Family Resources on Childhood IQ
基于3000多名儿童数据，估计家庭收入、父母教育、母亲就业和家庭构成对4岁和7岁儿童智商的影响，发现童年认知发展对财富代际传递作用小，收入补贴对智商影响不大，补偿教育有短期效果。
The effects of family income, parents' education, maternal employment, and family composition on the IQ scores of 4- and 7-year-olds are estimated, using a sample of more than 3000 children. The results suggest that childhood cognitive development plays a minor role in the intergenerational transmission of wealth, and that programs to supplement family incomes would not have much effect on children's IQ scores. Compensatory education is shown to have had significant but short-lived benefits for sample children. Implications for household production and confluence models of intellectual development are also examined.