Die vorliegende Arbeit untersucht die relative Wirksamkeit von Vermittlungsgutscheinen und Beauftragungen Dritter mit der gesamten Vermittlung im direkten Vergleich. Die Untersuchung basiert auf den Prozessdaten der Bundesagentur für Arbeit und bezieht sich auf das Jahr 2004. Als Zielvariable...

"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...

"The article analyses how the hidden labour force has developed in the recent past and what role the far-reaching modifications ensuing from the labour market reforms of 2005 (Hartz IV) have played. Estimations published by IAB in 2005 are used as a starting point. On the basis of these...

"Methods for the analysis of linked employer-employee data are not yet available in standard econometrics packages. In this paper, we make the fixed-effects methods developed orginally by Abowd, Kramarz, Margolis and others more accessible, where possible, and show how they can be implemented in...

"In many large data sets of economic interest, some variables, as wages, are top-coded or right-censored. In order to analyze wages with the German IAB employment sample we first have to solve the problem of censored wages at the upper limit of the social security system. We treat this problem...

"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...

"This paper illustrates the effects of item-nonresponse in surveys on the results of multivariate statistical analysis when estimation of productivity is the task. To multiply impute the missing data a data augmentation algorithm based on a normal/Wishart model is applied. Data of the German IAB...

"In this paper, we remove one serious drawback of the IAB employment sample impeding its applicability to the estimation of earnings frontiers: the censoring of the income data, by multiple imputation. Then, we estimate individual potential income with stochastic earnings frontiers, and we...

"Die Arbeit untersucht, wie stabil die Ergebnisse der jüngst vom Institut für Arbeitsmarkt- und Berufsforschung veröffentlichten Berechnungen zur Stillen Reserve für den Zeitraum von 1970 bis 2002 hinsichtlich der zentralen Modellannahme über die Höhe der Vollbeschäftigung sind. Dazu...