A comprehensive descriptive analysis of gender wage differences over a long time period is missing for West Germany. Using an empirical approach which takes into account explicitely changes of wage distributions for both males and females as well as life-cycle and birth cohort effects, we go...

Increasing participation rates in pupil surveys has become an important challenge for empirical educational research. In this paper we investigate whether combining a monetary incentive with a personalised invitation to participate in a survey increases the response rate of secondary school...

This paper investigates if significant differences exist between online and paper & pencil participants in a quarterly business survey in the German business-related services sector when respondents may freely choose to respond either online or by more conventional methods. It also analyzes the...

Im September 2016 konnte das Reallabor Asylsuchende im Rhein-Neckar-Kreis in zwei Gemeinschaftsunterkünften eine Befragung bei Geflüchteten durchführen. Insgesamt nahmen 370 Personen an der Befragung teil, darunter überwiegend junge Männer aus Afrika, Vorder- und Zentralasien. Die Befragung...

Das Reallabor Asyl geht von 4 zentralen Bereichen aus, die entscheidend für eine gelungene Integration von Flüchtlingen vor Ort sind: Sprache und Ausbildung, Arbeitsmarktintegration, Wohnen sowie bürgerschaftliches Engagement. In jedem dieser Teilbereiche wurde ein Teilprojekt unter der...

Theory predicts a positive relationship between market concentration and profitability in most scenarios. In empirical work, however, this relation is frequently not found or only a weak connection is observed. We compare the performance of concentration and market share variables, which are...