This thesis combines five essays in the fields of Labor Economics and the Economics of Education. The goal of the … their labor supply. The thesis is motivated by the notion that policies at different institutional levels (e.g., at the … positively and persistently affects subsequent grades. The last two chapters investigate labor supply decisions. …

pre-registered subsamples. The results imply very low substitutability of native for foreign labor in the policy …-relevant occupations. Forensic analysis suggests similarly low substitutability of black-market labor. …