Autism is a developmental disorder characterized by impairments in social interaction, communication, and restricted or repetitive behaviors. This previously rare condition has dramatically increased in prevalence from 0.5 in 1000 children during the 1970s to 11.3 in 1000 children in 2008. Using...

Based on new, exceptionally informative and large German linked employer-employee administrative data, we investigate the question whether the omission of important control variables in matching estimation leads to biased impact estimates of typical active labour market programs for the...

This paper investigates the link between variation in the supply of workers who participate in specific types of active labour market policies (ALMPs) and firm performance using a new exceptionally informative German employer-employee data base. For identification we exploit that German local...

This paper investigates how precisely short-term, job-search oriented training programs as opposed to long-term, human capital intensive training programs work. We evaluate and compare their effects on time until job entry, stability of employment, and earnings. Further, we examine the...

The demand for health care and healthcare professionals is predicted to grow significantly over the next decade. Securing an adequate health care workforce is of primary importance to ensure the health and wellbeing of the population in an efficient manner. Occupational licensing laws and...

Professions play a key role in determining the division of labor and the returns to skilled work. This paper studies the productivity difference between physicians and nurse practitioners (NPs), two health care professions performing overlapping tasks but with stark differences in background,...

This paper provides evidence on child penalties in female and male earnings in different countries. The estimates are based on event studies around the birth of the first child, using the specification proposed by Kleven et al. (2018). The analysis reveals some striking similarities in the...