Human Capital Development
研究秘鲁1994年出生队列8-22岁社会情感技能的发展，发现8岁时无财富梯度，但12岁后不平等扩大，由家庭投资和认知技能交叉生产力驱动，且社会技能与任务有效性在早期成年期与风险行为相关。
<h3>Abstract</h3> We estimate a dynamic model of socio-emotional skill development between ages 8-22 for a Peruvian cohort born in 1994. At age eight there is no wealth gradient, in contrast to cognitive skills. However, by age 12 inequalities emerge and widen through age 19, driven by differential household investments, and cross-productivity with cognitive skills. In early adulthood, we separate socio-emotional skills into two distinct domains – social skills and task effectiveness – that evolve differently, and are differently correlated with risky behaviors such as smoking or taking drugs. Unequal initial household resources perpetuate inequality across generations through cognitive and task effectiveness skills.