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Cost Savings From Generation and Distribution with an Application to Italian Electric Utilities

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Author Info

  • Giovanni Fraquelli

    ()

  • Massimiliano Piacenza

    ()

  • Davide Vannoni

    ()

Abstract

In the last decade, the European Commission promoted a new regulatory framework aiming at a gradual liberalization of the energy markets. The introduction of competition among generators implies the need to separate generation from transmission and distribution activities. However, if savings can be reached by operating at different stages, vertical separation would increase the costs of providing power. This paper tests for the presence of economies from vertical integration on a sample of Italian local electric utilities and finds evidence of both multi-stage economies of scale and vertical economies. Even if the hypothesis of global subadditivity is not supported, our evidence suggests that a complete divestiture policy would entail efficiency losses. Copyright Springer Science+Business Media, Inc. 2005

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Bibliographic Info

Article provided by Springer in its journal Journal of Regulatory Economics.

Volume (Year): 28 (2005)
Issue (Month): 3 (November)
Pages: 289-308

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Handle: RePEc:kap:regeco:v:28:y:2005:i:3:p:289-308

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Web page: http://www.springerlink.com/link.asp?id=100298

Related research

Keywords: composite cost function; electric utilities; liberalization; subadditivity; vertical integration; L11; L50; L94;

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Cited by:
  1. Goto, Mika & Inoue, Tomohiro & Sueyoshi, Toshiyuki, 2013. "Structural reform of Japanese electric power industry: Separation between generation and transmission & distribution," Energy Policy, Elsevier, vol. 56(C), pages 186-200.
  2. 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.
  3. Arocena, Pablo, 2008. "Cost and quality gains from diversification and vertical integration in the electricity industry: A DEA approach," Energy Economics, Elsevier, vol. 30(1), pages 39-58, January.
  4. Anna Bottasso & Maurizio Conti & Massimiliano Piacenza & Davide Vannoni, 2010. "The Appropriateness of the Poolability Assumption for Multiproduct Technologies: Evidence from the English Water and Sewerage Utilities," Carlo Alberto Notebooks 183, Collegio Carlo Alberto.
  5. Fiorio, Carlo V. & Florio, Massimo, 2013. "Electricity prices and public ownership: Evidence from the EU15 over thirty years," Energy Economics, Elsevier, vol. 39(C), pages 222-232.
  6. Sergio Jara-Díaz & Francisco Ramos-Real, 2011. "The effect of output specification on the optimal policy design for electric utilities," Journal of Regulatory Economics, Springer, vol. 40(1), pages 62-81, August.
  7. de Nooij, Michiel & Baarsma, Barbara, 2009. "Divorce comes at a price: An ex ante welfare analysis of ownership unbundling of the distribution and commercial companies in the Dutch energy sector," Energy Policy, Elsevier, vol. 37(12), pages 5449-5458, December.
  8. Fetz, Aurelio & Filippini, Massimo, 2010. "Economies of vertical integration in the Swiss electricity sector," Energy Economics, Elsevier, vol. 32(6), pages 1325-1330, November.
  9. Piacenza, Massimiliano & Turati, Gilberto & Vannoni, Davide, 2010. "Restructuring hospital industry to control public health care expenditure: The role of input substitutability," Economic Modelling, Elsevier, vol. 27(4), pages 881-890, July.
  10. Isabel Soares & Paula Sarmento, 2012. "Unbundling in the Telecommunications and the Electricity Sectors: How Far should it Go?," European Research Studies Journal, European Research Studies Journal, vol. 0(Special I), pages 157-194.
  11. Ottoz Elisabetta & Di Giacomo Marina, 2008. "Diversification strategies and scope economies: Evidence from a sample of Italian regional bus transport Pproviders," Department of Economics and Statistics Cognetti de Martiis. Working Papers 200802, University of Turin.
  12. Kwoka, J. & Ozturk, S. & Pollitt, M.G., 2008. "Divestiture Policy and Operating Efficiency in U.S. Electric Power Distribution," Cambridge Working Papers in Economics 0835, Faculty of Economics, University of Cambridge.
  13. Ferro, Gustavo & Lentini, Emilio & Mercadier, Augusto & Romero, Carlos A., 2010. "Retornos a escala en agua y saneamiento: estimaciones para América Latina
    [Returns to scale in water and sanitation: estimates for Latin Amercia]
    ," MPRA Paper 20324, University Library of Munich, Germany, revised Jan 2010.
  14. 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.
  15. Felix Höffler & Sebastian Kranz, 2007. "Imperfect Legal Unbundling of Monopolistic Bottlenecks," Bonn Econ Discussion Papers bgse16_2007, University of Bonn, Germany.
  16. Massimiliano Piacenza & Gilberto Turati & Davide Vannoni, 2007. "Hospital Industry Restructuring and Input Substitutability: Evidence from a Sample of Italian Hospitals," CERIS Working Paper 200703, Institute for Economic Research on Firms and Growth - Moncalieri (TO).
  17. Thomas Triebs & David S. Saal & Pablo Arocena & Subal C. Kumbhakar, 2012. "Estimating Economies of Scale and Scope with Flexible Technology," Ifo Working Paper Series Ifo Working Paper No. 142, Ifo Institute for Economic Research at the University of Munich.
  18. Johan Willner, 2008. "Liberalisation, competition and ownership in the presence of vertical relations," Empirica, Springer, vol. 35(5), pages 449-464, December.

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