[Einleitung] Die Corona-Pandemie und die Maßnahmen zu ihrer Bekämpfung haben seit Beginn des ersten Lockdowns im März 2020 die deutsche Wirtschaft und den Arbeitsmarkt vor gewaltige Herausforderungen gestellt. War Arbeitslosigkeit im Angesicht des kontinuierlichen Wirtschaftswachstums und...

In this paper, we present a nonparametric comparative efficiency analysis of 179 communal public transport bus companies in Germany (1990-2004). We apply both deterministic data envelopment analysis (DEA) and bootstrapping to test the robustness of our estimates and to test the hypothesis of...

This paper shows that the measurement of hand grip strength provides a non-invasive and reliable objective health indicator for social science research and is easy to collect in general population surveys. Grip strength is not only a useful complement of self-reported indicators of health, but...

This paper examines the implication of the move to CAPI for data quality by analyzing the conversion from PAPI to CAPI of a subsample of the German Socio-Economic Panel (SOEP) which was done within an experimental design. The 2000 addresses for the sample E of SOEP were split into two subsamples...