We analyse the effect of a mandatory kindergarten for four-year-old children on mothers' labour supply in Switzerland. Since education policy is regulated on a federal level, we exploit spatial variation as well as staggered implementation. Using a difference-in-differences approach, we find an...

We analyse the effect of a mandatory kindergarten for four-year-old children on maternal labour supply in Switzerland by using two quasi-experiments: Firstly, we use a large administrative dataset and apply a non-parametric Regression Discontinuity Design to evaluate the effect of the reform at...