Replication code for: "Preschool duration, family background and long-term outcomes: Evidence from the expansion of Ecole Maternelle in France"

Replication package for the paper "Preschool duration, family background and long-term outcomes: Evidence from the expansion of Ecole Maternelle in France" Abstract: This paper analyzes the long-term effects of preschool education in France. We focus on the effect of preschool duration on educational attainment and labor market earnings in adulthood. Building on a old tradition of free, universal pre-primary education, France implemented in the late 1960s a large scale expansion of facilities, leading to a massive increase in the supply of preschool. We rely on the independent variation across counties and cohorts in preschool supply, induced by this policy, to assess the effect of preschool duration using a Two-Samples Two-Stages Least Squares estimation. While the preschool expansion significantly raised preschool duration (+0.69 years), we find \textit{on average} small and non-significant long-term effects on employment and earnings, with some positive impacts on education attainment. We also investigate heterogeneity by parental socio-economic status and find that one additional year in preschool benefits significantly more children from an advantaged family background compared to peers, thus contributing to rising in magnitude the parental background gradient on children likelihood of graduating from high school (+8.3 percentage points) or college (+13.7 pp), employment (+13.3 pp), unemployment (-6.4 pp) and earnings (+5.4%) when adult.