This paper adds to the literature on extracurricular early childhood education and child development by exploiting unique data on an educational project in Germany, the Junior University (JU). Utilizing a quasi-experimental study design, we estimate the causal short-run effect of JU enrollment...

We consider long-term impacts of establishing school psychology offices in Norway, which introduced 'maturity testing' to advice parents and school boards on school starting age. In the early reform period, children born close to the normative age cut-off who reached school-starting age after...