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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.

Suggested Citation

  • Matthias Walter & Astrid Cullmann, 2008. "Potential Gains from Mergers in Local Public Transport: An Efficiency Analysis Applied to Germany," Discussion Papers of DIW Berlin 832, DIW Berlin, German Institute for Economic Research.
    • Handle: RePEc:diw:diwwpp:dp832
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    Cited by:

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    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.
    3. Zschille, Michael & Walter, Matthias & von Hirschhausen, Christian, 2010. "Ineffizienz und Strukturunterschiede in der deutschen Wasserversorgung," ZögU - Zeitschrift für öffentliche und gemeinwirtschaftliche Unternehmen, Nomos Verlagsgesellschaft mbH & Co. KG, vol. 33(3), pages 201-216.
    4. Angeliki Flokou & Vassilis Aletras & Dimitris Niakas, 2017. "Decomposition of potential efficiency gains from hospital mergers in Greece," Health Care Management Science, Springer, vol. 20(4), pages 467-484, December.
    5. Bönisch, Peter & Haug, Peter & Illy, Annette & Schreier, Lukas, 2011. "Municipality Size and Efficiency of Local Public Services: Does Size Matter?," IWH Discussion Papers 18/2011, Halle Institute for Economic Research (IWH).
    6. Koppitz David & Půček Milan & Ochrana František & Plaček Michal, 2015. "Comparative Analysis of Selected Factors Affecting Heating Costs of Schools in Selected Balkan Countries," NISPAcee Journal of Public Administration and Policy, Sciendo, vol. 8(1), pages 61-84, June.
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    8. Ying Li & Yung-Ho Chiu & Tai-Yu Lin & Tzu-Han Chang, 2020. "Pre-Evaluating the Technical Efficiency Gains from Potential Mergers and Acquisitions in the IC Design Industry," International Journal of Information Technology & Decision Making (IJITDM), World Scientific Publishing Co. Pte. Ltd., vol. 19(02), pages 525-559, April.
    9. Soukopová Jana & Nemec Juraj & Matějová Lenka & Struk Michal, 2014. "Municipality Size and Local Public Services: Do Economies of Scale Exist ?," NISPAcee Journal of Public Administration and Policy, Sciendo, vol. 7(2), pages 151-171, December.

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    More about this item

    Keywords

    Merger; Public Transport; Efficiency; Data Envelopment Analysis;
    All these keywords.

    JEL classification:

    • L92 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Railroads and Other Surface Transportation
    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

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