Deductibles in health insurance are often regarded as a means to contain health care costs when individuals exhibit moral hazard. However, in the absence of moral hazard, voluntarily chosen deductibles may instead lead to self-selection into different insurance contracts. We use a set of new...

We analyze the effect of education on wages using German Socio-Economic Panel data and regional variation in mandatory years of schooling and the supply of schools. This allows us to estimate more than one local average treatment effect and heterogeneous effects for different groups of...

We analyse the financial performance of small German hospitals based on balance sheet data of about 1,000 hospitals in 2007. Measures of financial performance are the earnings before interest, tax, depreciation, and amortisation (EBITDA) and the probability of default (PD). We find that, on...

We analyze the effect of household indebtedness on different health outcomes using data from the German Socio-Economic Panel from 1999–2009. To establish a causal effect, we rely on (a) fixed-effects methods, (b) a subsample of constantly employed individuals, and (c) lagged debt variables to...

We estimate the effect of language training on subsequent employment and wages of immigrants under essential heterogeneity. The identifying variation is based on regional differences in language training availability that we use to instrument endogenous participation. Estimating marginal...