Child care center quality and early child development
利用托儿所申请与录取的独特数据，研究家长对托儿所特征的偏好，并分析员工资质、经验、病假及性别和移民比例对随机分配儿童认知发展的影响。发现男性员工比例高的托儿所儿童语言测试成绩更好，而病假率高则语言和数学成绩更低。
A unique dataset on applications and admissions to child care centers allow us to explore parental preferences for child care center characteristics. We proceed to study how staff qualifications, experience and sickness absence, as well as the proportion of male and immigrant staff, explain the cognitive development of children randomly allocated to child care centers contingent on observable characteristics. Children who receive their first offer of child care enrollment from a center with a high share of male staff, perform better on language tests in their early school years. If the sickness absence is high in the center, child test scores are lower in both language and mathematics.