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Vertical integration, separation and non-price discrimination: An empirical analysis of German electricity markets for residential customers

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  • Nikogosian, Vigen
  • Veith, Tobias

Abstract

The literature on vertical integration in markets with regulated upstream prices suggests that the integrated upstream firm might engage in non-price discrimination. Several studies provide policy recommendations derived either from case study approaches or based on theoretical modeling which addresses the unbundling issue. In this study we analyze the impact of vertical integration of retail incumbent and network operator on retail prices and upstream charges. As the vertical structure is heterogeneous across the 850 German electricity submarkets for residential customers (there exist legally unbundled, vertically integrated or fully separated firms), we use firm level data to analyze the effects of different vertical structures and regulation schemes on retail electricity prices. We find significantly higher prices in markets with vertically integrated firms compared to markets with fully separated firms. This finding could indicate non-price discrimination. Furthermore, we find no evidence that legal unbundling eliminates the incentives for non-price discrimination because the prices do not differ from prices in markets under vertical integration.

Suggested Citation

  • Nikogosian, Vigen & Veith, Tobias, 2011. "Vertical integration, separation and non-price discrimination: An empirical analysis of German electricity markets for residential customers," ZEW Discussion Papers 11-069, ZEW - Leibniz Centre for European Economic Research.
    • Handle: RePEc:zbw:zewdip:11069
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    References listed on IDEAS

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    1. Christian Growitsch & Tooraj Jamasb & Michael Pollitt, 2009. "Quality of service, efficiency and scale in network industries: an analysis of European electricity distribution," Applied Economics, Taylor & Francis Journals, vol. 41(20), pages 2555-2570.
    2. Felix Höffler & Sebastian Kranz, 2011. "Imperfect legal unbundling of monopolistic bottlenecks," Journal of Regulatory Economics, Springer, vol. 39(3), pages 273-292, June.
    3. Crémer, Jacques & Cremer, Helmuth & De Donder, Philippe, 2006. "Legal vs Ownership Unbundling in Network Industries," CEPR Discussion Papers 5767, C.E.P.R. Discussion Papers.
    4. David Mandy & David Sappington, 2007. "Incentives for sabotage in vertically related industries," Journal of Regulatory Economics, Springer, vol. 31(3), pages 235-260, June.
    5. Evens Salies, 2008. "Mergers in the GB electricity market: effects on retail charges," Applied Economics, Taylor & Francis Journals, vol. 40(11), pages 1483-1490.
    6. Faye Steiner, 2003. "Regulation, industry structure and performance in the electricity supply industry," OECD Economic Studies, OECD Publishing, vol. 2001(1), pages 143-182.
    7. Paul Nillesen & Michael Pollitt, 2011. "Ownership Unbundling in Electricity Distribution: Empirical Evidence from New Zealand," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 38(1), pages 61-93, January.
    8. Pollitt, Michael, 2008. "The arguments for and against ownership unbundling of energy transmission networks," Energy Policy, Elsevier, vol. 36(2), pages 704-713, February.
    9. Nemoto, Jiro & Goto, Mika, 2004. "Technological externalities and economies of vertical integration in the electric utility industry," International Journal of Industrial Organization, Elsevier, vol. 22(1), pages 67-81, January.
    10. Massimiliano Piacenza & Davide Vannoni, 2009. "Vertical And Horizontal Economies In The Electric Utility Industry: An Integrated Approach," Annals of Public and Cooperative Economics, Wiley Blackwell, vol. 80(3), pages 431-450, September.
    11. Beard, T Randolph & Kaserman, David L & Mayo, John W, 2001. "Regulation, Vertical Integration and Sabotage," Journal of Industrial Economics, Wiley Blackwell, vol. 49(3), pages 319-333, September.
    12. T. Randolph Beard & David L. Kaserman & John W. Mayo, 2001. "Regulation, Vertical Integration and Sabotage," Journal of Industrial Economics, Wiley Blackwell, vol. 49(3), pages 319-333, September.
    13. Bolle, Friedel & Breitmoser, Yves, 2006. "On the Allocative Efficiency of Ownership Unbundling," Discussion Papers 255, European University Viadrina Frankfurt (Oder), Department of Business Administration and Economics.
    14. David Sappington, 2006. "On the Merits of Vertical Divestiture," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 29(3), pages 171-191, November.
    15. John Kwoka, 2005. "Electric power distribution: economies of scale, mergers, and restructuring," Applied Economics, Taylor & Francis Journals, vol. 37(20), pages 2373-2386.
    16. Lee, Sang Hyup & Hamilton, Jonathan H, 1999. "Using Market Structure to Regulate a Vertically Integrated Monopolist," Journal of Regulatory Economics, Springer, vol. 15(3), pages 223-248, May.
    17. Paul Nillesen & Michael Pollitt, 2007. "The 2001-3 electricity distribution price control review in the Netherlands: regulatory process and consumer welfare," Journal of Regulatory Economics, Springer, vol. 31(3), pages 261-287, June.
    18. Michael Crew & Anthony Heyes, 2005. "Introduction: Environmental Regulation," Journal of Regulatory Economics, Springer, vol. 28(2), pages 127-128, September.
    19. John Vickers, 1995. "Competition and Regulation in Vertically Related Markets," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 62(1), pages 1-17.
    20. Höffler, Felix & Kranz, Sebastian, 2011. "Legal unbundling can be a golden mean between vertical integration and ownership separation," International Journal of Industrial Organization, Elsevier, vol. 29(5), pages 576-588, September.
    21. Weisman, Dennis L, 1995. "Regulation and the Vertically Integrated Firm: The Case of RBOC Entry into Interlata Long Distance," Journal of Regulatory Economics, Springer, vol. 8(3), pages 249-266, November.
    22. Salop, Steven C & Scheffman, David T, 1983. "Raising Rivals' Costs," American Economic Review, American Economic Association, vol. 73(2), pages 267-271, May.
    23. Economides, Nicholas, 1998. "The incentive for non-price discrimination by an input monopolist," International Journal of Industrial Organization, Elsevier, vol. 16(3), pages 271-284, May.
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    Cited by:

    1. Ruester, Sophia & Schwenen, Sebastian & Batlle, Carlos & Pérez-Arriaga, Ignacio, 2014. "From distribution networks to smart distribution systems: Rethinking the regulation of European electricity DSOs," Utilities Policy, Elsevier, vol. 31(C), pages 229-237.
    2. Glachant, Jean-Michel & Ruester, Sophia, 2014. "The EU internal electricity market: Done forever?," Utilities Policy, Elsevier, vol. 30(C), pages 1-7.
    3. Jean-Michel Glachant & Sophia Ruester, 2013. "The EU Internal Electricity Market: Done Forever?," RSCAS Working Papers 2013/66, European University Institute.
    4. Sven Heim, Bastian Krieger, and Mario Liebensteiner, 2020. "Unbundling, Regulation, and Pricing: Evidence from Electricity Distribution," The Energy Journal, International Association for Energy Economics, vol. 0(Special I).
    5. Glachant, Jean-Michel & Ruester, Sophia, 2014. "The EU internal electricity market: Done forever?," Utilities Policy, Elsevier, vol. 31(C), pages 221-228.
    6. Claire Bergaentzlé, 2012. "Particularités d'adoption des compteurs intelligents au Royaume-Uni et en Allemagne : entre marchés de comptage libéralisé et règles à mettre en place pour un réel smart grid intégré," Post-Print halshs-00793322, HAL.
    7. Nikogosian, Vigen & Weigand, Jürgen, 2012. "Forward integration and market entry: Evidence from natural gas markets for household customers in Germany," ZEW Discussion Papers 12-062, ZEW - Leibniz Centre for European Economic Research.
    8. Haar, Lawrence, 2021. "The competitive disadvantages facing British assetless electricity retailers," Energy Policy, Elsevier, vol. 155(C).
    9. Hunold, Matthias & Laitenberger, Ulrich & Licht, Georg & Nikogosian, Vigen & Stenzel, André & Ullrich, Hannes & Wolf, Christoph, 2011. "Modernisierung der Konzentrationsberichterstattung: Endbericht," ZEW Expertises, ZEW - Leibniz Centre for European Economic Research, number 110525, September.

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    More about this item

    Keywords

    electricity; regulation; vertical integration; legal and total unbundling; non-price discrimination;
    All these keywords.

    JEL classification:

    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L5 - Industrial Organization - - Regulation and Industrial Policy
    • L9 - Industrial Organization - - Industry Studies: Transportation and Utilities

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