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

  • Giovanni Fraquelli

    ()

  • Massimiliano Piacenza

    ()

  • Davide Vannoni

    ()

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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File URL: http://hdl.handle.net/10.1007/s11149-005-3959-x
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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
Contact details of provider: Web page: http://www.springerlink.com/link.asp?id=100298

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  1. Michele Polo & Carlo Scarpa, 2003. "The liberalization of energy markets in Europe and Italy," Working Papers 230, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  2. 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.
  3. Garcia, Serge & Moreaux, Michel & Reynaud, Arnaud, 2004. "Measuring Economies of Vertical Integration in Network Industries: an Application to the Water Sector," IDEI Working Papers 255, Institut d'Économie Industrielle (IDEI), Toulouse.
  4. 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.
  5. Ivaldi, M & McCullough, G J, 2001. "Density and Integration Effects on Class I U.S. Freight Railroads," Journal of Regulatory Economics, Springer, vol. 19(2), pages 161-82, March.
  6. Primeaux, Walter J, Jr, 1977. "An Assessment of X-Efficiency Gained through Competition," The Review of Economics and Statistics, MIT Press, vol. 59(1), pages 105-08, February.
  7. 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.
  8. Giovanni Fraquelli & Massimiliano Piacenza & Davide Vannoni, 2004. "Scope and scale economies in multi-utilities: evidence from gas, water and electricity combinations," Applied Economics, Taylor & Francis Journals, vol. 36(18), pages 2045-2057.
  9. 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 221-30, May.
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