Informal care reduces work on the intensive and extensive margins; however, we do not know how caregiving affects work productivity. We link two new unique national U.S. data sets to provide the first causal estimates of the effect of providing at least 80 hours of informal care in the past...

The Bologna Process aimed at harmonizing European higher education systems and at increasing their efficiency. This paper analyzes impacts of the Bologna Reform for Germany by using unique micro data from Humboldt-Universität zu Berlin (HU). We estimate treatment effects on the probability to...

In this paper we estimate the effects of college education on cognitive abilities and health exploiting exogenous variation in college availability and student loan regulations. By means of semiparametric local instrumental variables techniques we estimate marginal treatment effects in an...

We estimate the effects of college education on female fertility - a so far understudied margin of education, which we instrument by arguably exogenous variation induced through college expansions. While college education reduces the probability of becoming a mother, college-educated mothers...

Does immigration accelerate sectoral change towards high-productivity sectors? This paper uses the mass displacement of ethnic Germans from Eastern Europe to West Germany after World War II as a natural experiment to study this question. A simple two-sector model of the economy, in which moving...

Does immigration accelerate sectoral change towards high-productivity sectors? This paper uses the mass displacement of ethnic Germans from Eastern Europe to West Germany after World War II as a natural experiment to study this question. A simple two-sector model of the economy, in which moving...

This paper evaluates the impact of a massive expansion of after-school programs (ASPs) on the labor market participation of mothers with primary school children in the West German context of relatively low full-time employment rates. Using an instrumental variables approach we exploit regional...

We analyse the problem of parameter inconsistency in panel data econometrics due to the correlation of exogenous variables with the error term. A common solution in this setting is to use Instrumental-Variable (IV) estimation in the spirit of Hausman-Taylor (1981). However, some potential...