The Impact of Daycare Attendance on Math Test Scores for a Cohort of Fourth Graders in Brazil
研究了巴西儿童早期参加托儿所对四年级数学成绩的影响，发现效果因母亲教育水平而异，从-0.28到0.42个标准差不等。
We estimate the impact of having attended centre-based daycare institutions during early childhood on math test scores at the fourth grade level of elementary school. We find evidence that daycare attendance has a net impact on math proficiency, and that the effects are heterogeneous. The effect of daycare and kindergarten attendance on proficiency varies according to mother’s education. The effects of the impact of daycare vary from −0.28 standard deviation for mothers with no education to 0.42 standard deviation for mother’s with college or more.