Cullmann, Astrid; Hirschhausen, Christian von - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2007
In this paper we test the hypothesis that the economic transition toward a market economy increases the efficiency of firms. We study 32 Polish electricity distribution companies between 1997-2002, by applying common benchmarking methods to the panel: the nonparametric data envelopment analysis...