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What happened to efficiency in electricity industries after reforms?

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  • Erkan, Erdogdu

Abstract

The last two decades have witnessed widespread power market reforms in both developed and developing countries that have cost billions of dollars. Among the key aims (and assumptions) of these reforms, there has always been realization of improvements in power sector efficiency. This paper questions the validity of this hypothesis. Using panel data from 92 countries covering the period 1982-2008, empirical models are developed and analyzed. The research findings suggest that the impact of the reforms on electricity industry performance is statistically significant but also limited. The results imply that, after controlling for country-specific variables, application of liberal market models in electricity industries slightly increases efficiency in power sector. Besides, we detect a positive relationship between reform process and the percentage share of network (transmission and distribution) losses in total electricity supplied, meaning that as countries take more reform steps the network losses as a fraction of power generated tend to increase. Moreover, the study puts forward that income level and other country specific features are more important determinants of industry efficiency than the reform process. Overall, contrary to expectations of substantial increases in sector efficiency, the paper concludes that introducing a decentralized market model with competition in the electricity sector has a limited increasing effect on power industry performance.

Suggested Citation

  • Erkan, Erdogdu, 2011. "What happened to efficiency in electricity industries after reforms?," Energy Policy, Elsevier, vol. 39(10), pages 6551-6560, October.
    • Handle: RePEc:eee:enepol:v:39:y:2011:i:10:p:6551-6560
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    1. Yin-Fang Zhang & David Parker & Colin Kirkpatrick, 2008. "Electricity sector reform in developing countries: an econometric assessment of the effects of privatization, competition and regulation," Journal of Regulatory Economics, Springer, vol. 33(2), pages 159-178, April.
    2. Erdogdu, Erkan, 2011. "The impact of power market reforms on electricity price-cost margins and cross-subsidy levels: A cross country panel data analysis," Energy Policy, Elsevier, vol. 39(3), pages 1080-1092, March.
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    4. Carlo Fiorio & Massimo Florio & Raffaele Doronzo, 2007. "The Electricity Industry Reform Paradigm in the European Union: Testing the Impact on Consumers," UNIMI - Research Papers in Economics, Business, and Statistics unimi-1066, Universitá degli Studi di Milano.
    5. Jamasb, T. & Newbery, D. & Pollitt, M., 2004. "'Core Indicators for Determinants and Performance of Electricity Sector in Developing Countries’," Cambridge Working Papers in Economics 0438, Faculty of Economics, University of Cambridge.
    6. World Bank, 2010. "World Development Indicators 2010," World Bank Publications - Books, The World Bank Group, number 4373, December.
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    Citations

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    Cited by:

    1. Bastianin, Andrea & Castelnovo, Paolo & Florio, Massimo, 2018. "Evaluating regulatory reform of network industries: a survey of empirical models based on categorical proxies," Utilities Policy, Elsevier, vol. 55(C), pages 115-128.
    2. Michael L. Polemis & Thanasis Stengos, 2017. "Electricity Sector Performance: A Panel Threshold Analysis," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
    3. Polemis, Michael L., 2016. "New evidence on the impact of structural reforms on electricity sector performance," Energy Policy, Elsevier, vol. 92(C), pages 420-431.
    4. Antonio Estache & Stéphane Saussier, 2014. "Public-Private Partnerships and Efficiency: A Short Assessment," ifo DICE Report, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 12(3), pages 08-13, October.
    5. Karahan, Hatice & Toptas, Mehmet, 2013. "The effect of power distribution privatization on electricity prices in Turkey: Has liberalization served the purpose?," Energy Policy, Elsevier, vol. 63(C), pages 614-621.
    6. L sara Fabr cia Rodrigues & Matheus Alves Madeira de Souza & Thamara Paula dos Santos Dias, 2017. "Performance Assessment of Brazilian Power Transmission and Distribution Segments using Data Envelopment Analysis," International Journal of Energy Economics and Policy, Econjournals, vol. 7(3), pages 14-23.
    7. repec:ces:ifodic:v:12:y:2014:i:3:p:19126463 is not listed on IDEAS
    8. Andrea Bastianin & Paolo Castelnovo & Massimo Florio, 2017. "The Empirics of Regulatory Reforms Proxied by Categorical Variables: Recent Findings and Methodological Issues," Working Papers 2017.22, Fondazione Eni Enrico Mattei.
    9. Mika Goto and Toshiyuki Sueyoshi, 2016. "Electricity market reform in Japan after Fukushima," Economics of Energy & Environmental Policy, International Association for Energy Economics, vol. 0(Number 1).
    10. Pompei, Fabrizio, 2013. "Heterogeneous effects of regulation on the efficiency of the electricity industry across European Union countries," Energy Economics, Elsevier, vol. 40(C), pages 569-585.

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    More about this item

    Keywords

    Models with panel data (C33) Power market reform Electricity industry efficiency;

    JEL classification:

    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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