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Vertical disintegration in the European electricity sector: Empirical evidence on lost synergies

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  • Gugler, Klaus
  • Liebensteiner, Mario
  • Schmitt, Stephan

Abstract

The EU has been promoting unbundling of the transmission grid from other stages of the electricity supply chain with the aim of fostering competition in the upstream stage of electricity generation. At present, ownership unbundling is the predominant form of unbundling in Europe. From a policy perspective, a successful unbundling regime would require that the benefits of increased competition in power generation would at least offset the associated efficiency losses from vertical divestiture. Since evidence on this topic is scarce, this study helps fill this void by empirically estimating the magnitude of economies of vertical integration (EVI) between electricity generation and transmission based on a quadratic cost function. For this purpose we employ unique firm-level panel data of European electricity utilities. Our results confirm the presence of substantial EVI of 14% for the median sized integrated utility. Moreover, EVI tend to increase with firm size.

Suggested Citation

  • Gugler, Klaus & Liebensteiner, Mario & Schmitt, Stephan, 2017. "Vertical disintegration in the European electricity sector: Empirical evidence on lost synergies," International Journal of Industrial Organization, Elsevier, vol. 52(C), pages 450-478.
    • Handle: RePEc:eee:indorg:v:52:y:2017:i:c:p:450-478
    DOI: 10.1016/j.ijindorg.2017.04.002
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    1. Pulley, Lawrence B & Humphrey, David B, 1993. "The Role of Fixed Costs and Cost Complementarities in Determining Scope Economies and the Cost of Narrow Banking Proposals," The Journal of Business, University of Chicago Press, vol. 66(3), pages 437-462, July.
    2. Daron Acemoglu & Philippe Aghion & Rachel Griffith & Fabrizio Zilibotti, 2010. "Vertical Integration and Technology: Theory and Evidence," Journal of the European Economic Association, MIT Press, vol. 8(5), pages 989-1033, September.
    3. Mehdi Farsi & Aurelio Fetz & Massimo Filippini, 2008. "Economies of Scale and Scope in Multi-Utilities," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4), pages 123-144.
    4. Pulley, Lawrence B & Braunstein, Yale M, 1992. "A Composite Cost Function for Multiproduct Firms with an Application to Economies of Scope in Banking," The Review of Economics and Statistics, MIT Press, vol. 74(2), pages 221-230, May.
    5. Pollitt, Michael, 2008. "The arguments for and against ownership unbundling of energy transmission networks," Energy Policy, Elsevier, vol. 36(2), pages 704-713, February.
    6. Thomas P. Triebs & David S. Saal & Pablo Arocena & Subal C. Kumbhakar, 2016. "Estimating economies of scale and scope with flexible technology," Journal of Productivity Analysis, Springer, vol. 45(2), pages 173-186, April.
    7. Piacenza, Massimiliano & Vannoni, Davide, 2004. "Choosing among alternative cost function specifications: an application to Italian multi-utilities," Economics Letters, Elsevier, vol. 82(3), pages 415-422, March.
    8. E. Martínez-Budría & S. Jara-Díaz & F. Ramos-Real, 2003. "Adapting Productivity Theory to the Quadratic Cost Function. An Application to the Spanish Electric Sector," Journal of Productivity Analysis, Springer, vol. 20(2), pages 213-229, September.
    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. Claude Menard & Mary M. Shirley (ed.), 2005. "Handbook of New Institutional Economics," Springer Books, Springer, number 978-0-387-25092-2, December.
    11. Greer, Monica L., 2008. "A test of vertical economies for non-vertically integrated firms: The case of rural electric cooperatives," Energy Economics, Elsevier, vol. 30(3), pages 679-687, May.
    12. Baumol, William J, 1982. "Contestable Markets: An Uprising in the Theory of Industry Structure," American Economic Review, American Economic Association, vol. 72(1), pages 1-15, March.
    13. D. Balmert & G. Brunekreeft, 2010. "Deep-ISOs and Network Investment," Competition and Regulation in Network Industries, Intersentia, vol. 11(1), pages 27-50, March.
    14. Mehdi Farsi & Massimo Filippini, 2004. "Regulation and Measuring Cost-Efficiency with Panel Data Models: Application to Electricity Distribution Utilities," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 25(1), pages 1-19, August.
    15. Ramos-Real, Francisco Javier, 2005. "Cost functions and the electric utility industry. A contribution to the debate on deregulation," Energy Policy, Elsevier, vol. 33(1), pages 69-87, January.
    16. Schober, Dominik, 2013. "Static vs. dynamic impacts of unbundling: Electricity markets in South America," ZEW Discussion Papers 13-033, ZEW - Leibniz Centre for European Economic Research.
    17. Mark J. Roberts, 1986. "Economies of Density and Size in the Production and Delivery of Electric Power," Land Economics, University of Wisconsin Press, vol. 62(4), pages 378-387.
    18. Roland Meyer, 2012. "Vertical Economies and the Costs of Separating Electricity Supply--A Review of Theoretical and Empirical Literature," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4).
    19. 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.
    20. Joskow, Paul L., 2005. "Transmission policy in the United States," Utilities Policy, Elsevier, vol. 13(2), pages 95-115, June.
    21. Schmitt, Stephan & Kucsera, Denes, 2013. "The Impact of the Regulatory Reform Process on R&D Investment of European Electricity Utilities," VfS Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 80035, Verein für Socialpolitik / German Economic Association.
    22. Kaserman, David L & Mayo, John W, 1991. "The Measurement of Vertical Economies and the Efficient Structure of the Electric Utility Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 39(5), pages 483-502, September.
    23. Fetz, Aurelio & Filippini, Massimo, 2010. "Economies of vertical integration in the Swiss electricity sector," Energy Economics, Elsevier, vol. 32(6), pages 1325-1330, November.
    24. Giovanni Fraquelli & Massimiliano Piacenza & Davide Vannoni, 2005. "Cost Savings From Generation and Distribution with an Application to Italian Electric Utilities," Journal of Regulatory Economics, Springer, vol. 28(3), pages 289-308, November.
    25. Roland Meyer, 2012. "Economies of scope in electricity supply and the costs of vertical separation for different unbundling scenarios," Journal of Regulatory Economics, Springer, vol. 42(1), pages 95-114, August.
    26. Kwoka, John E., 2002. "Vertical economies in electric power: evidence on integration and its alternatives," International Journal of Industrial Organization, Elsevier, vol. 20(5), pages 653-671, May.
    27. Lee, Byung-Joo, 1995. "Separability Test for the Electricity Supply Industry," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 10(1), pages 49-60, Jan.-Marc.
    28. Pablo Arocena & David S. Saal & Tim Coelli, 2012. "Vertical and Horizontal Scope Economies in the Regulated U . S . Electric Power Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 60(3), pages 434-467, September.
    29. Gilsdorf, Keith, 1994. "Vertical integration efficiencies and electric utilities: A cost complementarity perspective," The Quarterly Review of Economics and Finance, Elsevier, vol. 34(3), pages 261-282.
    30. Williamson, Oliver E, 1971. "The Vertical Integration of Production: Market Failure Considerations," American Economic Review, American Economic Association, vol. 61(2), pages 112-123, May.
    31. Laurits R. Christensen & William H. Greene, 1978. "An Econometric Assessment of Cost Savings from Coordination in U.S. Electric Power Generation," Land Economics, University of Wisconsin Press, vol. 54(2), pages 139-155.
    32. 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.
    33. Jara-Diaz, Sergio & Ramos-Real, Francisco Javier & Martinez-Budria, Eduardo, 2004. "Economies of integration in the Spanish electricity industry using a multistage cost function," Energy Economics, Elsevier, vol. 26(6), pages 995-1013, November.
    34. Silke Januszewski Forbes & Mara Lederman, 2009. "Adaptation and Vertical Integration in the Airline Industry," American Economic Review, American Economic Association, vol. 99(5), pages 1831-1849, December.
    35. 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.
    36. Greene, W., 2001. "Estimating Econometric Models with Fixed Effects," New York University, Leonard N. Stern School Finance Department Working Paper Seires 01-10, New York University, Leonard N. Stern School of Business-.
    37. Gugler, Klaus & Rammerstorfer, Margarethe & Schmitt, Stephan, 2013. "Ownership unbundling and investment in electricity markets — A cross country study," Energy Economics, Elsevier, vol. 40(C), pages 702-713.
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    More about this item

    Keywords

    Cost function; Economies of vertical integration; Ownership unbundling; Asset specificity; Market complexity; Electricity;
    All these keywords.

    JEL classification:

    • L22 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Organization and Market Structure
    • L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy

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