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Vertical And Horizontal Economies In The Electric Utility Industry: An Integrated Approach

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  • Massimiliano Piacenza
  • Davide Vannoni
Abstract
ABSTRACT**: The empirical literature on the cost structure of the electric utility industry traditionally focused on the measurement of specific technological properties: 1) scale economies in generation or distribution; 2) multi‐product (or horizontal) scope economies at one particular stage; 3) multi‐stage (or vertical) scope economies. By adopting an integrated approach, which simultaneously considers both horizontal and vertical aspects of the technology, we find the presence, on a sample of Italian electric utilities, of both vertical integration gains and horizontal scope economies at the downstream stage. In the light of recent regulatory reforms aiming at restructuring European electricity markets, our findings have important policy implications as for the proper configuration of the industry. Moreover, this methodology can be usefully applied to the study of the production structure of other public network utilities involved in similar vertical and horizontal reorganization processes.

Suggested Citation

  • 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.
    • Handle: RePEc:bla:annpce:v:80:y:2009:i:3:p:431-450
    DOI: 10.1111/j.1467-8292.2009.00392.x
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    References listed on IDEAS

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    3. 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.
    4. Ryota Nakatani, 2023. "Productivity drivers of infrastructure companies: Network industries utilizing economies of scale in the digital era," Annals of Public and Cooperative Economics, Wiley Blackwell, vol. 94(4), pages 1273-1298, December.
    5. 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.
    6. Bottasso, Anna & Conti, Maurizio & Piacenz, Massimiliano & Vannoni, Davide, 2011. "The appropriateness of the poolability assumption for multiproduct technologies: Evidence from the English water and sewerage utilities," International Journal of Production Economics, Elsevier, vol. 130(1), pages 112-117, March.
    7. Sudhir Mahadeo Bobde & Makoto Tanaka, 2020. "Structural Reforms and Technical Efficiency in the Indian Electricity Distribution Sector," Asia-Pacific Journal of Operational Research (APJOR), World Scientific Publishing Co. Pte. Ltd., vol. 37(02), pages 1-36, March.
    8. Karolis Andriuškevičius & Dalia Štreimikienė, 2021. "Developments and Trends of Mergers and Acquisitions in the Energy Industry," Energies, MDPI, vol. 14(8), pages 1-14, April.
    9. Mydland, Ørjan & Kumbhakar, Subal C. & Lien, Gudbrand & Amundsveen, Roar & Kvile, Hilde Marit, 2020. "Economies of scope and scale in the Norwegian electricity industry," Economic Modelling, Elsevier, vol. 88(C), pages 39-46.
    10. 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.
    11. 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.

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