Research on determining what it is about schooling that the labor market rewards is scarce. This paper shows that when speci…cally controlling for schooling cognitive skills (i.e. the capacity to process information and apply knowledge) and not cognitive skills as a whole, a considerable share...

In this paper we measure the effect of entering preelementary school at age 2 rather than 3 in France. Our identification strategy relies on ratios between the number of young children and the capacity of preelementary schools observed at the very local level. This information allows us to solve...