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Revisiting Electricity Liberalization and Security of Supply: Empirical Evidence

Author

Listed:
  • Rabindra Nepal

    (School of Economics, University of Queensland)

  • John Foster

    (School of Economics, University of Queensland)

  • Antonio Carvalho

    (Heriot-Watt University)

Abstract

What effect does firm structure have on the product service quality on offer? We answer this question by empirically assessing the impacts of complete vertical separation, such as ownership unbundling, on the quality of service delivered by a liberalized network industry. Electricity distribution utilities in New Zealand are considered for this purpose. The results show robust evidence that ownership unbundling contributed to a fall in the duration and frequency of supply interruptions in electricity distribution. However, the results also show that unbundling has no effect in reducing distribution network losses. Overall the results highlight the non-simple impacts of unbundling on quality of electricity distribution. We conclude that quality of service may improve when largely accounted in incentive regulation frameworks than completely relying on specific reform measures such as ownership unbundling.

Suggested Citation

  • Rabindra Nepal & John Foster & Antonio Carvalho, 2014. "Revisiting Electricity Liberalization and Security of Supply: Empirical Evidence," Energy Economics and Management Group Working Papers 7-2014, School of Economics, University of Queensland, Australia.
    • Handle: RePEc:qld:uqeemg:7-2014
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    File URL: http://www.uq.edu.au/eemg/docs/workingpapers/2014-7.pdf
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    References listed on IDEAS

    as
    1. 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.
    2. Hattori, Toru & Tsutsui, Miki, 2004. "Economic impact of regulatory reforms in the electricity supply industry: a panel data analysis for OECD countries," Energy Policy, Elsevier, vol. 32(6), pages 823-832, April.
    3. 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.
    4. Kennedy, Peter E, 1981. "Estimation with Correctly Interpreted Dummy Variables in Semilogarithmic Equations [The Interpretation of Dummy Variables in Semilogarithmic Equations]," American Economic Review, American Economic Association, vol. 71(4), pages 801-801, September.
    5. Paul Nillesen & Michael G. Pollitt, 2019. "Ownership Unbundling of Electricity Distribution Networks," Working Papers EPRG 1905, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    6. David M. Drukker, 2003. "Testing for serial correlation in linear panel-data models," Stata Journal, StataCorp LLC, vol. 3(2), pages 168-177, June.
    7. Williamson, Oliver E, 1979. "Transaction-Cost Economics: The Governance of Contractural Relations," Journal of Law and Economics, University of Chicago Press, vol. 22(2), pages 233-261, October.
    8. Filippini, Massimo & Wetzel, Heike, 2014. "The impact of ownership unbundling on cost efficiency: Empirical evidence from the New Zealand electricity distribution sector," Energy Economics, Elsevier, vol. 45(C), pages 412-418.
    9. Im, Kyung So & Pesaran, M. Hashem & Shin, Yongcheol, 2003. "Testing for unit roots in heterogeneous panels," Journal of Econometrics, Elsevier, vol. 115(1), pages 53-74, July.
    10. Christian Growitsch & Marcus Stronzik, 2014. "Ownership unbundling of natural gas transmission networks: empirical evidence," Journal of Regulatory Economics, Springer, vol. 46(2), pages 207-225, October.
    11. Economides, Nicholas, 1999. "Quality choice and vertical integration," International Journal of Industrial Organization, Elsevier, vol. 17(6), pages 903-914, August.
    12. A. Michael Spence, 1975. "Monopoly, Quality, and Regulation," Bell Journal of Economics, The RAND Corporation, vol. 6(2), pages 417-429, Autumn.
    13. Evans, Lewis & Meade, Richard, 2009. "Alternating Currents or Counter-Revolution? Contemporary Electricity Reform in New Zealand, VUW Press 2005 , 1-346," Working Paper Series 4321, Victoria University of Wellington, The New Zealand Institute for the Study of Competition and Regulation.
    14. repec:aen:journl:ej33-4-08 is not listed on IDEAS
    15. repec:aen:journl:33-1-a04 is not listed on IDEAS
    16. Faye Steiner, 2003. "Regulation, industry structure and performance in the electricity supply industry," OECD Economic Studies, OECD Publishing, vol. 2001(1), pages 143-182.
    17. Alberto Alesina & Silvia Ardagna & Giuseppe Nicoletti & Fabio Schiantarelli, 2005. "Regulation And Investment," Journal of the European Economic Association, MIT Press, vol. 3(4), pages 791-825, June.
    18. Kunneke, Rolf & Fens, Theo, 2007. "Ownership unbundling in electricity distribution: The case of The Netherlands," Energy Policy, Elsevier, vol. 35(3), pages 1920-1930, March.
    19. Pollitt, Michael, 2008. "The arguments for and against ownership unbundling of energy transmission networks," Energy Policy, Elsevier, vol. 36(2), pages 704-713, February.
    20. Gunn, Calum & Sharp, Basil, 1999. "Electricity distribution as an unsustainable natural monopoly: a potential outcome of New Zealand's regulatory regime," Energy Economics, Elsevier, vol. 21(4), pages 385-401, August.
    21. Jeffrey M Wooldridge, 2010. "Econometric Analysis of Cross Section and Panel Data," MIT Press Books, The MIT Press, edition 2, volume 1, number 0262232588, December.
    22. Reichl, Johannes & Kollmann, Andrea & Tichler, Robert & Schneider, Friedrich, 2008. "The importance of incorporating reliability of supply criteria in a regulatory system of electricity distribution: An empirical analysis for Austria," Energy Policy, Elsevier, vol. 36(10), pages 3862-3871, October.
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    JEL classification:

    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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