Dagenais (1999) and Lucchetti (2002) have demonstrated that the naive GMM estimator of Grogger (1990) for the probit model with an endogenous regressor is not consistent. This paper completes their discussion by explaining the reason for the inconsistency and presenting a natural solution....

Die Reformdiskussion für die soziale Grundsicherung für Erwerbsfähige konzentriert sich in der Regel auf eine Verbesserung der finanziellen Anreize zur Aufnahme einer Erwerbstätigkeit und auf Maßnahmen des "workfare". Das vorliegende Papier verbreitert die Diskussion mit Hilfe eines...

The inference in probit models relies on the assumption of normality. However, tests of this assumption are not implemented in standard econometric software. Therefore, the paper presents a simple representation of the Bera-Jarque-Lee test, that does not require any matrix algebra. Furthermore,...

Die Analyse von Weiterbildungsaktivitäten nimmt in der empirischen Literatur breiten Raum ein. Die meisten Artikel betrachten dabei jedoch ausschließlich die Gruppe der Erwerbstätigen oder die Gruppe der Arbeitslosen. Direkte Vergleiche des Weiterbildungsvolumens der beiden Gruppen sind rar....

Many empirical studies consider either training activities of the unemployed or training activities of the employees in Germany. However, a comprehensive comparison of both groups is missing. The paper closes this gap. Using data of the latest time use survey (Zeitbudgeterhebung) of the Federal...

Reforms of benefits for long-term unemployed in Germany are usually discussed in terms of workfare and financial incentives. This paper broadens the discussion with a concept of incentive ethics. It analyzes how the dependency on benefits can be left out by allocating so-called moral goods to...

Dagenais (1999) and Lucchetti (2002) have demonstrated that the naive GMM estimator of Grogger (1990) for the probit model with an endogenous regressor is not consistent. This paper completes their discussion by explaining the reason for the inconsistency and presenting a natural solution....

The inference in probit models relies on the assumption of normality. However, tests of this assumption are not implemented in standard econometric software. Therefore, the paper presents a simple representation of the Bera-Jarque-Lee test, that does not require any matrix algebra. Furthermore,...

The ‘cluster theory’ has become one of the main concepts promoting regional competitiveness, innovation, and growth. As most studies focus on measures of concentration of one industrial branch in order to identify regional clusters, the appropriate analysis of specific vertical relations...

The article analyses the question whether women and men differ in their tastes for location factors. The question is answered by quantifying the impact of location characteristics on interregional migration flows across Germany. The analysis is based on a grouped conditional logit approach. We...