Dr. Andreas Leibing

Nach dem Abitur stehen junge Erwachsene vor der Entscheidung, ob sie eine Ausbildung beginnen oder sich an einer Hochschule einschreiben. Im Gegensatz zu Universitäten haben Hochschulen für Angewandte Wissenschaften in den letzten Jahren an Bedeutung gewonnen. Diese Studie untersucht, wie sich Arbeitsmarktbedingungen auf die Studienentscheidung sowie die damit verbundene Wahl des Hochschultyps auswirken. Als Datengrundlage hierfür dient die Statistik der Studierenden. Trendbereinigte Daten zeigen, dass sich in Zeiten hoher Arbeitslosigkeit weniger Abiturientinnen und Abiturienten für ein Hochschulstudium entscheiden.

Science aspires to be cumulative. Reproducibility efforts strengthen science by testing the reliability of published findings, promoting self-correction, and informing policy-making. Computational reproductions, whereby independent researchers reproduce the results of published studies, are an essential diagnostic tool. Such efforts should have greater visibility. However, little social science reproduction and robustness has been conducted at scale. Here we reproduced original analyses and conducted robustness checks of 110 articles that were published in leading economics and political science journals with mandatory data and code sharing policies. We found that more than 85% of published claims were computationally reproducible.

This paper investigates the long-run consequences of a later school entry for personality traits. For identification, we exploit the statutory cutoff rules for school enrollment in Germany within a regression discontinuity design. We find that relatively older school starters have persistently lower levels of neuroticism in adulthood. This effect is entirely driven by women, which has important implications for gender gaps in the labor market, as women typically score significantly higher on neuroticism at all stages of life, which puts them at a disadvantage. Our results suggest that family decisions regarding compliance with enrollment cutoffs may have lasting implications for gender gaps in socio-emotional skills.

Using detailed data from a unique survey of high school graduates in Germany, we document a gender gap in expected full-time earnings of more than 15%. We decompose this early gender gap and find that especially differences in coefficients help explain different expectations. In particular, the effects of having time for family as career motive and being first-generation college student are associated with large penalties in female wage expectations exclusively. This is especially true for higher expected career paths. Resulting expected returns to education are associated with college enrollment of women and could thus entrench subsequent gaps in realized earnings.

Following a landmark court ruling in 2005, more than half of Germany’s universities started charging tuition fees, which were later abolished in a staggered manner. We exploit the fact that even students who were already enrolled had to start paying fees. We show that fees increase study effort and degree completion among these students. However, fees also decrease first-time university enrollment among high school graduates. Combining this enrollment impact with the effect on completion, we find that fees around the zero-price margin have only little effect on overall educational attainment. We conclude by discussing policies targeting the separate effect margins of fees and caution against a general abolition.

Atwood analyzes the effects of the 1963 U.S. measles vaccination on long-run labor market outcomes, using a generalized difference-in-differences approach. We reproduce the results of this paper and perform a battery of robustness checks. Overall, we confirm that the measles vaccination had positive labor market effects. While the negative effect on the likelihood of living in poverty and the positive effect on the probability of being employed are very robust across the different specifications, the headline estimate - the effect on earnings - is more sensitive to the exclusion of certain regions and survey years.