We apply a monopoly trade union model and analyze employment, wage and budgetary effects of (i) an inflow of migrant workers and (ii) an increase in the labor market participation rate of migrants. Per assumption, natives and migrants solely differ with respect to the level of benefit claims in...

Does a high regional concentration of immigrants of the same ethnicity affect immigrant children's acquisition of host-country language skills and educational attainment? We exploit the exogenous placement of guest workers from five ethnicities across German regions during the 1960s and 1970s in...

In this article, we examine anti-foreigner hate crime in the wake of the large influx of asylum seekers to Germany in 2014 and 2015. By exploiting the quasi-experimental assignment of asylum seekers to German regions, we estimate the causal effect of an unexpected and sudden change in the share...

How did the large asylum-seeker inflow to Germany in 2015 affect concerns about immigration? Using individual-level panel data for the years 2012–2018, I show that after 2015 concerns about immigration increased by about 21 pp. and support for extreme right-wing parties by about 1.7 pp. These...

We analyze empirically the optimal design of social insurance and assistance programs when families obtain insurance by making labor supply choices for both spouses. For this purpose, we specify a structural life-cycle model of the labor supply and savings decisions of singles and married...

This study analyzes the causal effect of an increase in the retirement age on health. We exploit a sizable cohort-specific pension reform for women using two complementary empirical approaches - a Regression Discontinuity Design and a Difference-in-Differences approach. The analysis is based on...

We evaluate the labor market and distributional effects of an increase in the early retirement age (ERA) from 60 to 63 for women. We use a regression discontinuity design which exploits the immediate increase in the ERA between women born in 1951 and 1952. The analysis is based on the German...

The rapid spread of COVID-19 forced policy-makers to swiftly find solutions to reduce infection rates and keep mortality as low as possible. Empirical analyses on the effectiveness of control measures are hereby of primary importance. School closures were among the earliest measures enacted by...

We empirically analyze the optimal mix and optimal generosity of unemployment insurance and social assistance programs. To do so, we specify a structural life-cycle model of the labor supply, savings, and social assistance claiming decisions of singles and married couples. Partial insurance...

This paper shows that increasing the normal retirement age and introducing pension deductions for retirement before normal retirement age in Germany did not prolong employment of older men. The reason for this surprising result is that employers encouraged their employees to use the bridge...