The paper analyses how context and time dependent factors determine the impulse of R&D subsidies on firm behavior with respect to private R&D expenditures. Based on data from the German R&D survey, we combine propensity-score matching with a difference-in-difference-estimator in order to measure...

In diesem Papier wird der Effekt der Einführung von leistungsorientierter Mittelvergabe (LOM) im deutschen Hochschulsektor analysiert. Seit Anfang der 1990er Jahre wurden neue Finanzierungssysteme nach und nach in den Bundesländern eingeführt, die zum Ziel hatten, die Performance und...

In February 2017, Portugal implemented a tax on sugar-sweetened beverages (SSBs), under which producers were to be taxed according to the amount of sugar contained in the drinks they manufactured. We exploit administrative accounting data covering the universe of Portuguese firms between 2012...

Citizenship is the most important right a host country can bestow on its immigrant population. Yet, little is known which citizenship policies work and who actually benefits from them. To answer these questions, we estimate the marginal returns to citizenship on children’s school performance...

This study analyzes the effect of fathers' parental leave-taking on the time fathers spend with their children and on mothers' and fathers' labor supply. Fathers' leave-taking is highly selective and the identification of causal effects relies on within-father differences in leave-taking for...

When properly implemented, Randomized Controlled Trials (RCT) achieve a high degree of internal validity. Yet, if an RCT is to inform policy, it is critical to establish external validity. This paper systematically reviews all RCTs conducted in developing countries and published in leading...

This paper studies whether people's perception of improvements in local air quality are reflected in the housing market based on comprehensive data on real estate prices from Germany. Using a quasi-experimental research design, we exploit the staggered introduction of Low Emission Zones (LEZs)...

This article investigates the effects of large groups of first-year students on individual college performance. The study is based on administrative micro-level data from the universe of higher education institutions in Germany. The empirical strategy exploits shocks in undergraduate enrollment...

Between 2003 and 2005, the German government passed an unprecedented package of labor market reforms, commonly known as the Hartz-reforms. This led to a "labor market miracle" with sharply declining unemployment rates. This paper examines these reforms at the regional level and provides a...