An important education reform in Germany reduced the duration of university preparatory schooling from 13 to 12 years, but left the curriculum unchanged. In the state of Saxony-Anhalt the reform was completed in 2007 with a double cohort of graduates, providing a natural experiment. We use...

This paper investigates the problem of an ``optimum population'' with respect to the age structure. Within a 3-period OLG model, with endogenous fertility and longevity, the optimal age structure, identified by number-dampened total utilitarianism, is generally failed in the laissez-faire...

Increasing mothers labor supply is a key policy challenge in many OECD countries. Germany recently introduced a generous parental benefit that allows for strong consumption smooth- ing after childbirth and, by taking into account opportunity costs of childbearing, incentivizes working women to...

In August 2013, two child care reforms have come into effect at the same time: First, a legal claim to formal child care has been introduced for all children aged one year or older. Second, a new benefit called Betreuungsgeld has been introduced that is granted to families who do not use public...

As the number of young children in daycare increases, people start to worry about the effect of early non-parental care. This is of special relevance as investments in the early periods of life are shown to be most important for a child’s long term development. Based on the German national...

This paper investigates the degree of monoposony power of German employers in different industries, using a semi-structural approach based on a dynamic model of monopsonistic competition. The empirical analysis is based on a linked employer-employee data set which allows us to control for...

We provide an overidentification test for a nonparametric treatment model where individuals are allowed to select into treatment based on unobserved gains. Our test can be used to test the validity of instruments in a framework with essential heterogeneity (Imbens and Angrist 1994). The...

Successful innovation is a precondition for economic prosperity. While various potential determinants of innovative activity have been considered, little empirical evidence is yet available for the influence of firm governance issues. This paper aims at filling this gap in the literature by...

In this paper, I analyze the impact of the extension of the ECB s collateral framework on securities sales. In addition, I evaluate the impact of different macroeconomic and bank-specific characteristics on banks selling behavior. At this, I distinguish between healthy banks and banks rescued...

Economists have a long tradition in identifying the evolution of cooperation in large, unstructured societies as a puzzle. We suggest a new explanation for cooperation which avoids restrictions of most previous attempts. Our explanation deals with the role of internalized norms for cooperation...