[ger] Schätzung eines vollständigen Systems der Güternachfrage und des Arbeitsangebots für eine Stichprobe französischer Haushalte, . von Richard Blundell, François Laisney, Matthias Ruth.. . Um ein vollständiges Nachfragesystem zu erhalten, das mit dem Treffen von Entscheidungen uber den...

Zhang and Bartels (1998) show formallyhow DEA efficiency scores are affected by sample size. They demonstratethat comparing measures of structural inefficiency between samplesof different sizes leads to biased results. This note arguesthat this type of sample size bias has much wider...

This study investigates the measurement of the efficiency of product markets by means of Data Envelopment Analysis (DEA). To demonstrate how comparing average efficiencies derived by DEA across markets may lead to conclusions driven mainly by the effects of sample size when the samples differ...

This study introduces the concept of product performance from the perspective of customers. Product performance is measured as a ratio of outputs that customers obtain from a product relative to inputs that customers have to spend for purchasing and using the product. The output side is modelled...

The use of non-parametric frontier methods for the evaluation of product market efficiency in heterogeneous markets seems to have gained some popularity recently. However, the statistical properties of these frontier estimators have been largely ignored. The main point is that non-parametric...

This paper introduces a novel method to incorporate categorical non-discretionary variables in Data Envelopment Analysis (DEA) models. While solutions to this problem have been introduced before, they have rarely been employed in applied work. We surmise that existing solution concepts pose...