Educational Attainment and Intergenerational Mobility: A Polygenic Score Analysis
在父母投资与代际流动性标准模型中引入遗传分析，发现基因分布影响代际收入弹性，并利用双亲与子女的遗传数据检验模型，揭示智力对代际流动的影响强于其他特征。
We extend a standard model of parental investment and intergenerational mobility to include a fully specified genetic analysis of skill transmission. The model’s predictions differ substantially from the standard model’s. The coefficient of intergenerational income elasticity (IGE) may be larger than that in the standard model and depends on the distribution of the genotype. The distribution of genetic endowments may be stratified according to income. The model is tested on data, including genetic information, of twins and their parents, estimating how IGE is affected by genetic factors and how environment and genes interact. The effect of intelligence is substantially stronger than that of other traits.