Prior to the introduction of mother tongue based education in 1994, the language of instruction for most subjects in Ethiopia's primary schools was the official language (Amharic) - the mother tongue of only one third of the population. This paper uses the variation in individual's exposure to...

One of the most important policy goals in industrialized countries is to increase the skill level of the labor force by life-long-learning strategies. In this paper our aim is to explain to what extent the variation in training investments is determined either by (observed and unobserved)...

This paper studies heterogeneity in schooling decisions by socio-economic status (SES) in response to a repeal of achievement-based admissions requirements (i.e. binding track recommendations) in Germany's between-school tracking system. The main contribution is to show that while previously...

Studies on the underlying mechanisms of social mobility commonly find that half of the intergenerational earnings persistence remains unexplained. Focusing on the phenomenon of overqualification, this study examines a transmission channel that might operate beyond the mechanisms previously...

Over the 2000s, many federal states in Germany shortened the duration of secondary school by one year while keeping the curriculum unchanged. Exploiting quasi-experimental variation due to the staggered introduction of this reform allows me to identify the causal effect of increased learning...

This paper provides a labour supply explanation to the observation that in Germany employment changes are asymmetric during the business cycle. Employment increases are slower, because the reservation wage of workers increases in times of job uncertainty. Workers are afraid in those periods of...