期刊名称：DIW Diskussionspapiere / Deutsches Institut für Wirtschaftsforschung, Berlin
出版年度：2007
卷号：2007
出版社：Deutsches Institut für Wirtschaftsforschung, Berlin
摘要：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 (DEA), the
free disposal hull (FDH), and, as a parametric approach, the stochastic frontier
analysis (SFA). We then measure and decompose productivity change with Malmquist
indices. We find that the technical efficiency of the companies has indeed
increased during the transition, while allocative efficiency has deteriorated.
We also find significantly increasing returns to scale, suggesting that the
regulatory authority should allow companies to merge into larger units.
