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Overcoming Data Limitations in Nonparametric Benchmarking: Applying PCA-DEA to Natural Gas Transmission
Nieswand, Maria; Cullmann, Astrid; Neumann, Anne - In: Review of Network Economics 9 (2010) 2
We empirically demonstrate a practical approach of efficiency evaluation with limited data availability in some regulated industries. We apply PCA-DEA for radial efficiency measurement to U.S. natural gas transmission companies in 2007. PCA-DEA reduces dimensions of the optimization problem...
Persistent link: https://www.econbiz.de/10014619165
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No differences in efficiency between public and private utilities
Cullmann, Astrid; Nieswand, Maria; Seifert, Stefan; … - In: DIW Economic Bulletin 6 (2016) 20, pp. 233-238
The increase in municipal economic activity in the utilities sector frequently comes under scrutiny. It is presumed that public utilities have less incentive to provide efficient service than private companies. This could result in excessive costs and prices for end users. New microdata on...
Persistent link: https://www.econbiz.de/10011476307
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Keine Effizienzunterschiede zwischen öffentlichen und privaten Energieversorgungsunternehmen
Cullmann, Astrid; Nieswand, Maria; Seifert, Stefan; … - In: DIW Wochenbericht 83 (2016) 20, pp. 448-453
Die Ausweitung der kommunalen Wirtschaftstätigkeit in der Energieversorgung wird oftmals kritisch betrachtet. Es wird vermutet, dass öffentliche Unternehmen im Vergleich zu privaten Unternehmen geringeren Anreizen zu effizienter Leistungserstellung unterliegen. Das könnte überhöhte Kosten...
Persistent link: https://www.econbiz.de/10011476331
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Keine Effizienzunterschiede zwischen öffentlichen und privaten Energieversorgungsunternehmen
Cullmann, Astrid; Nieswand, Maria; Seifert, Stefan; … - In: DIW-Wochenbericht : Wirtschaft, Politik, Wissenschaft 83 (2016) 20, pp. 448-453
Die Ausweitung der kommunalen Wirtschaftstätigkeit in der Energieversorgung wird oftmals kritisch betrachtet. Es wird vermutet, dass öffentliche Unternehmen im Vergleich zu privaten Unternehmen geringeren Anreizen zu effizienter Leistungserstellung unterliegen. Das könnte überhöhte Kosten...
Persistent link: https://www.econbiz.de/10011473356
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Key parameters and efficiency of Mexican manufacturing: Are there still differences between the north and the south? An application of nested and stochastic frontier panel data mod...
Braun, Frauke G.; Cullmann, Astrid - 2008
This study explores the prevalence and nature of the regional divide for the Mexican manufacturing production across sub-national regions. We utilize a unique panel of municipality-level data from the manufacturing sector. An important contribution is the use of different panel methods to...
Persistent link: https://www.econbiz.de/10010324264
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Next stop: restructuring? A nonparametric efficiency analysis of German public transport companies
von Hirschhausen, Christian R.; Cullmann, Astrid - 2008
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...
Persistent link: https://www.econbiz.de/10010324265
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Next Stop: Restructuring?: A Nonparametric Efficiency Analysis of German Public Transport Companies
Hirschhausen, Christian von; Cullmann, Astrid - DIW Berlin (Deutsches Institut für Wirtschaftsforschung) - 2008
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...
Persistent link: https://www.econbiz.de/10005068743