We conduct an empirical analysis of the technical efficiency of cars sold in Germany in 2010. The analysis is performed using traditional data envelopment analysis (DEA) as well as directional distance functions (DDF). The approach of DDF allows incorporating the reduction of carbon dioxide...

This study explores the reduction potential of greenhouse gases for major pollution emitting countries of the world using nonparametric productivity measurement methods and directional distance functions. In contrast to the existing literature we apply optimization methods to endogenously...

Mikroökonomisch fundierte Einführung: Sie zeigt, wie man auch ohne Vorkenntnisse der Produktionsfunktion zu Aussagen über die produktive Effizienz kommen kann. Die Autoren stellen den Ansatz der nichtparametrischen Frontierfunktionsanalyse vor und erweitern ihn über verschiedene Schritte....

In this paper we analyse public sector efficiency in the new member states of the European Union compared to that in emerging markets. After a conceptual discussion of expenditure efficiency measurement issues, we compute efficiency scores and rankings by applying a range of measurement...