A nonparametric efficiency analysis of German public transport companies

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• 作者：Christian von Hirschhausen ; Astrid Cullmann
• 关键词：Public transport ; Buses ; Efficiency analysis ; Nonparametric methods ; DEA ; Bootstrapping
• 刊名：Transportation Research Part E: Logistics and Transportation Review
• 出版年：2010
• 出版时间：May 2010
• 年：2010
• 卷：46
• 期：3
• 页码：436-445
• 全文大小：411 K

文摘

In this paper, we present a nonparametric comparative efficiency analysis of 179 communal public transport bus companies in Germany (1990–2004). We apply both deterministic data envelopment analysis (DEA) and bootstrapping to test the robustness of our estimates and to test the hypothesis of global and individual constant returns to scale. We find that the average technical efficiency of German bus companies is relatively low. We observe that the industry appears to be characterized by increasing returns to scale for smaller companies. These results would imply increasing pressure on bus companies to restructure.