Es wird zurzeit viel über Schulschließungen, Abi-Prüfungen und Studierende im Digitalmodus gesprochen - wenig hört man zur Situation von Auszubildenden.

Die Bedeutung der Berufsschulen für die Qualifizierung und Integration von Jugendlichen in Ausbildung und für die regionale Wirtschaft wird aktuell interessenpolitisch übergreifend betont. Konsens besteht darin, dass die Verbesserung der infrastrukturellen Ausstattung zentrale Aufgabe der...

In this paper, stochastic production frontier models are estimated with IAB establishment data from waves 2002 and 2003 to analyze productivity and inefficiency. The data suffer from nonresponse in the most important variables (output, capital and labor) leading to the loss of 25 % of the...

This paper makes three contributions to the literature on the effects of collective bargaining on the performance of German establishments. We include the analysis of firms' efficiency and we model productivity and efficiency simultaneously. Confronted with 25 % observations with missing values,...

In this paper, stochastic production frontier models are estimated with IAB establishment data from waves 2002 and 2003 to find important determinants of productivity and ineffciency. The data suffer from nonresponse in the most important variables (output, capital and labor) leading to the loss...

This paper discusses methodological problems of standard errors and treatment effects. First, heteroskedasticity- and cluster-robust estimates are considered as well as problems with Bernoulli distributed regressors, outliers and partially identified parameters. Second, procedures to determine...