We consider estimation of a panel data model where disturbances are spatially correlated in the cross-sectional dimension, based on geographic or economic proximity. When the time dimension of the data is large, spatial correlation parameters may be consistently estimated. When the time...

Parametric stochastic frontier models yield firm-level conditional distributions of inefficiency that are truncated normal. Given these distributions, how should one assess and rank firm-level efficiency? This study compares the techniques of estimating a) the conditional mean of inefficiency...

In this paper we compare two flexible estimators of technical efficiency in a cross-sectional setting: the nonparametric kernel SFA estimator of Fan, Li and Weersink (1996) to the nonparametric bias corrected DEA estimator of Kneip, Simar and Wilson (2008). We assess the finite sample...

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....