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Potential Gains from Mergers in Local Public Transport: An Efficiency Analysis Applied to Germany

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  • Matthias Walter
  • Astrid Cullmann

Abstract

We analyze potential gains from hypothetical mergers in local public transport using the non-parametric Data Envelopment Analysis with bias corrections by means of bootstrapping. Our sample consists of 41 public transport companies from Germany's most densely populated region, North Rhine-Westphalia. We merge them into geographically meaningful, larger units that operate partially on a joint tram network. Merger gains are then decomposed into individual technical efficiency, synergy and size effects following the methodology of Bogetoft and Wang [Bogetoft, P., Wang, D., 2005. Estimating the Potential Gains from Mergers. Journal of Productivity Analysis, 23(2), 145-171]. Our empirical findings suggest that substantial gains up to 16 percent of factor inputs are present, mainly resulting from synergy effects.

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File URL: http://www.diw.de/documents/publikationen/73/diw_01.c.89947.de/dp832.pdf
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Bibliographic Info

Paper provided by DIW Berlin, German Institute for Economic Research in its series Discussion Papers of DIW Berlin with number 832.

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Length: 35 p.
Date of creation: 2008
Date of revision:
Handle: RePEc:diw:diwwpp:dp832

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Keywords: Merger; Public Transport; Efficiency; Data Envelopment Analysis;

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References

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  1. Bogetoft, Peter & Wang, Dexiang, 2003. "Estimating the Potential Gains from Mergers," Unit of Economics Working papers, Royal Veterinary and Agricultural University, Food and Resource Economic Institute 24213, Royal Veterinary and Agricultural University, Food and Resource Economic Institute.
  2. Simar, L. & Wilson, P.W., 1998. "A General Methodology for Bootstrapping in Nonparametric Frontier Models," Papers, Catholique de Louvain - Institut de statistique 9811, Catholique de Louvain - Institut de statistique.
  3. Mehdi Farsi & Aurelio Fetz & Massimo Filippini, 2007. "Economies of Scale and Scope in Local Public Transportation," Journal of Transport Economics and Policy, London School of Economics and University of Bath, London School of Economics and University of Bath, vol. 41(3), pages 345-361, September.
  4. Necmiddin Bagdadioglu & Catherine Waddams Price & Thomas Weyman-Jones, 2007. "Measuring Potential Gains from Mergers among Electricity Distribution Companies in Turkey using a Non-Parametric Model," The Energy Journal, International Association for Energy Economics, International Association for Energy Economics, vol. 0(Number 2), pages 83-110.
  5. Kneip, Alois & Park, Byeong U. & Simar, L opold, 1998. "A Note On The Convergence Of Nonparametric Dea Estimators For Production Efficiency Scores," Econometric Theory, Cambridge University Press, Cambridge University Press, vol. 14(06), pages 783-793, December.
  6. SIMAR, Léopold & WILSON, Paul, 1995. "Sensitivity Analysis to Efficiency Scores : How to Bootstrap in Nonparametric Frontier Models," CORE Discussion Papers, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE) 1995043, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  7. Christian von Hirschhausen & Astrid Cullmann, 2008. "Next Stop: Restructuring?: A Nonparametric Efficiency Analysis of German Public Transport Companies," Discussion Papers of DIW Berlin 831, DIW Berlin, German Institute for Economic Research.
  8. Simar, L. & Wilson, P.W., 1999. "Statistical Inference in Nonparametric Frontier Models: the State of the Art," Papers, Catholique de Louvain - Institut de statistique 9904, Catholique de Louvain - Institut de statistique.
  9. Tsybakov, A.B. & Korostelev, A.P. & Simar, L., 1992. "Efficient Estimation of Monotone Boundaries," Papers, Catholique de Louvain - Institut de statistique 9209, Catholique de Louvain - Institut de statistique.
  10. Rajiv D. Banker & Richard C. Morey, 1986. "The Use of Categorical Variables in Data Envelopment Analysis," Management Science, INFORMS, INFORMS, vol. 32(12), pages 1613-1627, December.
  11. DE BORGER, Bruno & KERSTENS, Kristiaan & COSTA, Álvaro, . "Public transit performance: What do we learn from frontier studies?," Working Papers 2000019, University of Antwerp, Faculty of Applied Economics.
  12. Alfons Oude Lansink & Ky–sti Pietola, 2002. "Effciency and productivity of conventional and organic farms in Finland 1994--1997," European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, vol. 29(1), pages 51-66, March.
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Cited by:
  1. Peter Bönisch & Peter Haug & A. Illy & L. Schreier, 2011. "Municipality Size and Efficiency of Local Public Services: Does Size Matter?," IWH Discussion Papers, Halle Institute for Economic Research 18, Halle Institute for Economic Research.
  2. Laura Carosi & Giovanna D’Inverno & Letizia Ravagli, 2014. "Global public spending efficiency in Tuscan municipalities," Discussion Papers 2014/175, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.

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