Longer-Term Effects of Head Start
利用收入动态面板研究数据，发现参加Head Start项目的白人儿童更可能完成高中学业和上大学，早期收入可能更高；黑人儿童犯罪率更低，且对弟妹有正面溢出效应。
Specially collected data on adults in the Panel Study of Income Dynamics are used to provide evidence on the longer-term effects of Head Start, an early intervention program for poor preschool-age children. Whites who attended Head Start are, relative to their siblings who did not, significantly more likely to complete high school, attend college, and possibly have higher earnings in their early twenties. African-Americans who participated in Head Start are less likely to have been booked or charged with a crime. There is some evidence of positive spillovers from older Head Start children to their younger siblings.