In this paper, I evaluate potential side effects of the educational expansion in Germany on the learning outcomes of today's students. The educational expansion was a demand shock in the labor market of teachers, which could have thus encouraged individuals with different teaching abilities to...

This paper evaluates the effectiveness of the introduction of a Writing Center at a university. The center has the purpose to provide subject-specific courses that aim to improve students' abilities of scientific writing. In order to deal with presumed selfperceptional biases of students in...

Since their first implementation in 2000, the PISA studies have attracted public attention and spurred the demand for institutional changes in schooling systems. The introduction of standardized student tests and of incentives for schools and teachers are notable examples of such institutional...

This paper evaluates the eff ectiveness of the introduction of a Writing Center at a university. The center has the purpose to provide subject-specifi c courses that aim to improve students‘ abilities of scientifi c writing. In order to deal with presumed selfperceptional biases of students in...

Since their first implementation in 2000, the PISA studies have attracted public attention and spurred the demand for institutional changes in schooling systems. The introduction of standardized student tests and of incentives for schools and teachers are notable examples of such institutional...

Sample selection models, variants of which are the Heckman and Heckit models, are increasingly used by political scientists to accommodate data in which censoring of the dependent variable raises concerns of sample selectivity bias. Beyond demonstrating several pitfalls in the calculation of...

The classical Heckman (1976, 1979) selection correction estimator (heckit) is misspecified and inconsistent if an interaction of the outcome variable and an explanatory variable matters for selection. To address this specification problem, a full information maximum likelihood estimator and a...

Sample selection models, variants of which are the Heckman and Heckit models, are increasingly used by political scientists to accommodate data in which censoring of the dependent variable raises concerns of sample selectivity bias. Beyond demonstrating several pitfalls in the calculation of...

The classical Heckman (1976, 1979) selection correction estimator (heckit) is misspecified and inconsistent if an interaction of the outcome variable and an explanatory variable matters for selection. To address this specification problem, a full information maximum likelihood estimator and a...

This study examines the effects of a nationwide shock-responsive social cash transfer scheme during an aggregate shock, with a focus on highly risk susceptible informal sector households in Kenya. Leveraging primary in-person survey data in a doubly robust difference-in-differences framework, we...