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...

Statistical Analysis in surveys is often facing missing data. As case-wise deletion and single imputation prove to have undesired properties, multiple imputation remains as a measure to handle this problem. In a longitudinal study, where for some missing values past or future data points might...

This study analyses the effect of an increase in college costs on student achievement, particularly time-to-degree and performance. I exploit a unique policy at a Swiss university to identify and estimate the causal effect of an increase in tuition. Students faced an unexpected raise in tuition....

Using comprehensive data for West Germany, this paper investigates the determinants of establishment exit. We find that between 1975 and 2006 the average exit rate has risen considerably. In order to test various "liabilities" of establishment survival identified in the literature, we analyze...

Several formal methods have been proposed to check identification in DSGE models via (i) the autocovariogram (Iskrev 2010), (ii) the spectral density (Komunjer and Ng 2011; Qu and Tkachenko 2012), or (iii) Bayesian indicators (Koop et al 2012). Even though all methods seem similar, there has been no...

Apart from a priori assumptions on instantaneous or long run effects of structural shocks, sign restrictions have become a prominent means for structural vector autoregressive (SVAR) analysis. Moreover, second order heterogeneity of systems of times series can be fruitfully exploited for...

This paper estimates the labor market effects of being awarded with a training voucher using an instrumental variable approach. In Germany all public sponsored further training programs are allocated through vouchers and the system, we study here, thus represents a major case of the use of...

This paper is the first to estimate the effect of one partner's entry into unemployment on the mental health of both spouses in Germany. In order to give the estimates a causal interpretation, this study focuses on an exogenous entry into unemployment (plant closure) and applies a...

Models built on the classical quality-quantity trade-off predict an increase in child quality and a decrease in child quantity in poor developing countries when parental wealth and educational levels increase. This paper tests this prediction empirically in a cross-sectional framework with data...

In this paper incumbency effects in Federal Elections and Mayoral Elections in Germany are estimated using a quasi-experimental design which allows for causal inference under a set of rather mild assumptions. Relying on nonparametric and parametric estimation procedures and exploiting a recently...