Head Start and the Distribution of Long-Term Education and Labor Market Outcomes
研究美国开端计划对30多岁人群教育和工资的影响，发现该计划对教育年限和工资收入有显著正向作用，且效果集中在分布低端，对女性、黑人和西班牙裔最强。
We investigate the effect of Head Start on education and wage income for individuals in their 30s in the NLSY79. We contribute to the existing literature by examining effects across the outcome distributions, using an approach that relies on two weak stochastic dominance assumptions that can be checked using pre-Head Start cohorts. We find that Head Start has positive and statistically significant effects on years of education and wage income. We also uncover important heterogeneity in the effectiveness of the program; the effects are concentrated at the lower end of the distribution, and the effects are strongest for women, blacks and Hispanics.