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Pricing behaviour under competition in the UK electricity supply industry

Author

Listed:
  • Monica Giulietti
  • Jesus Otero
  • Michael Waterson

Abstract

This paper investigates the evolution of electricity prices for domestic customers in the UK following the introduction of competition. The empirical analysis is based on a panel data set containing detailed information about electricity supply prices over the period 1999 to 2006. The analysis examines the pricing patterns and draws inferences concerning the benefits of incumbency and the gains from search. The econometric analysis of persistence and price dispersion provides rather limited support for the view that the market is becoming more competitive and also indicates that there remain significant potential benefits to consumers from searching alternative suppliers. Copyright 2010 Oxford University Press 2009 All rights reserved, Oxford University Press.

Suggested Citation

  • Monica Giulietti & Jesus Otero & Michael Waterson, 2010. "Pricing behaviour under competition in the UK electricity supply industry," Oxford Economic Papers, Oxford University Press, vol. 62(3), pages 478-503, July.
    • Handle: RePEc:oup:oxecpp:v:62:y:2010:i:3:p:478-503
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    1. Morgan, John & Orzen, Henrik & Sefton, Martin, 2006. "An experimental study of price dispersion," Games and Economic Behavior, Elsevier, vol. 54(1), pages 134-158, January.
    2. Goldberg, Pinelopi K. & Verboven, Frank, 2005. "Market integration and convergence to the Law of One Price: evidence from the European car market," Journal of International Economics, Elsevier, vol. 65(1), pages 49-73, January.
    3. Kaddour Hadri, 2000. "Testing for stationarity in heterogeneous panel data," Econometrics Journal, Royal Economic Society, vol. 3(2), pages 148-161.
    4. Kwiatkowski, Denis & Phillips, Peter C. B. & Schmidt, Peter & Shin, Yongcheol, 1992. "Testing the null hypothesis of stationarity against the alternative of a unit root : How sure are we that economic time series have a unit root?," Journal of Econometrics, Elsevier, vol. 54(1-3), pages 159-178.
    5. M. Hashem Pesaran, 2007. "A simple panel unit root test in the presence of cross-section dependence," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 22(2), pages 265-312.
    6. Chang, Yoosoon, 2004. "Bootstrap unit root tests in panels with cross-sectional dependency," Journal of Econometrics, Elsevier, vol. 120(2), pages 263-293, June.
    7. Frankel, Jeffrey A. & Rose, Andrew K., 1996. "A panel project on purchasing power parity: Mean reversion within and between countries," Journal of International Economics, Elsevier, vol. 40(1-2), pages 209-224, February.
    8. Jeffrey R. Brown & Austan Goolsbee, 2002. "Does the Internet Make Markets More Competitive? Evidence from the Life Insurance Industry," Journal of Political Economy, University of Chicago Press, vol. 110(3), pages 481-507, June.
    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. Burdett, Kenneth & Judd, Kenneth L, 1983. "Equilibrium Price Dispersion," Econometrica, Econometric Society, vol. 51(4), pages 955-969, July.
    11. repec:bla:obuest:v:61:y:1999:i:0:p:631-52 is not listed on IDEAS
    12. Michael R. Baye & John Morgan & Patrick Scholten, 2004. "Price Dispersion In The Small And In The Large: Evidence From An Internet Price Comparison Site," Journal of Industrial Economics, Wiley Blackwell, vol. 52(4), pages 463-496, December.
    13. Giulietti, Monica & Otero, Jesus & Smith, Jeremy, 2006. "Testing for stationarity in heterogeneous panel data in the presence of cross section dependence," The Warwick Economics Research Paper Series (TWERPS) 758, University of Warwick, Department of Economics.
    14. Moraga-González, José Luis & Wildenbeest, Matthijs R., 2008. "Maximum likelihood estimation of search costs," European Economic Review, Elsevier, vol. 52(5), pages 820-848, July.
    15. Jeremy Berkowitz & Lutz Kilian, 2000. "Recent developments in bootstrapping time series," Econometric Reviews, Taylor & Francis Journals, vol. 19(1), pages 1-48.
    16. Maarten C. W. Janssen & José Luis Moraga-González, 2004. "Strategic Pricing, Consumer Search and the Number of Firms," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 71(4), pages 1089-1118.
    17. Lee, Hsiu-Yun & Wu, Jyh-Lin, 2001. "Mean Reversion of Inflation Rates: Evidence from 13 OECD Countries," Journal of Macroeconomics, Elsevier, vol. 23(3), pages 477-487, July.
    18. Han Hong & Matthew Shum, 2006. "Using price distributions to estimate search costs," RAND Journal of Economics, RAND Corporation, vol. 37(2), pages 257-275, June.
    19. Michael R. Baye & John Morgan, 2001. "Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets," American Economic Review, American Economic Association, vol. 91(3), pages 454-474, June.
    20. G. S. Maddala & Shaowen Wu, 1999. "A Comparative Study of Unit Root Tests with Panel Data and a New Simple Test," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 61(S1), pages 631-652, November.
    21. Judson, Ruth A. & Owen, Ann L., 1999. "Estimating dynamic panel data models: a guide for macroeconomists," Economics Letters, Elsevier, vol. 65(1), pages 9-15, October.
    22. Monica Giulietti & Catherine Waddams Price & Michael Waterson, 2005. "Consumer Choice and Competition Policy: a Study of UK Energy Markets," Economic Journal, Royal Economic Society, vol. 115(506), pages 949-968, October.
    23. Stahl, Dale O, II, 1989. "Oligopolistic Pricing with Sequential Consumer Search," American Economic Review, American Economic Association, vol. 79(4), pages 700-712, September.
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    Cited by:

    1. Nils-Henrik M. von der Fehr & Petter Vegard Hansen, 2010. "Electricity Retailing in Norway," The Energy Journal, International Association for Energy Economics, vol. 0(Number 1), pages 25-46.
    2. Monica Giulietti & Michael Waterson & Matthijs Wildenbeest, 2014. "Estimation of Search Frictions in the British Electricity Market," Journal of Industrial Economics, Wiley Blackwell, vol. 62(4), pages 555-590, December.
    3. Xiaoping He & David Reiner, 2015. "Why Do More British Consumers Not Switch Energy Suppliers? The Role of Individual Attitudes," Working Papers EPRG 1515, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    4. He, X. & Reiner, D., 2018. "Consumer Engagement in Energy Markets: The Role of Information and Knowledge," Cambridge Working Papers in Economics 1867, Faculty of Economics, University of Cambridge.
    5. Xiaoping He & David Reiner, 2017. "Why Consumers Switch Energy Suppliers: The Role of Individual Attitudes," The Energy Journal, International Association for Energy Economics, vol. 0(Number 6).
    6. Daglish, Toby, 2016. "Consumer governance in electricity markets," Energy Economics, Elsevier, vol. 56(C), pages 326-337.
    7. Jens Metge & Pia Weiss, 2011. "Protecting The Domestic Market: Industrial Policy And Strategic Firm Behavior," The Singapore Economic Review (SER), World Scientific Publishing Co. Pte. Ltd., vol. 56(02), pages 159-174.
    8. Apergis, Nicholas & Polemis, Michael, 2018. "Electricity supply shocks and economic growth across the US states: evidence from a time-varying Bayesian panel VAR model, aggregate and disaggregate energy sources," MPRA Paper 84954, University Library of Munich, Germany.
    9. Brown, David P. & Eckert, Andrew, 2018. "The effect of default rates on retail competition and pricing decisions of competitive retailers: The case of Alberta," Energy Policy, Elsevier, vol. 118(C), pages 298-311.
    10. Defeuilley, Christophe, 2009. "Retail competition in electricity markets," Energy Policy, Elsevier, vol. 37(2), pages 377-386, February.
    11. de Bragança, Gabriel Godofredo Fiuza & Daglish, Toby, 2017. "Investing in vertical integration: electricity retail market participation," Energy Economics, Elsevier, vol. 67(C), pages 355-365.
    12. Silvia Concettini & Anna Creti, 2013. "Liberalization of electricity retailing in Europe: coming back or going forth?," Working Papers hal-00915924, HAL.
    13. Wilson, Chris M, 2009. "Market Frictions: A Unified Model of Search and Switching Costs," MPRA Paper 13672, University Library of Munich, Germany.
    14. Chris Wilson, 2009. "Market Frictions: A Unified Model of Search Costs and Switching Costs," Working Paper series, University of East Anglia, Centre for Competition Policy (CCP) 2009-03, Centre for Competition Policy, University of East Anglia, Norwich, UK..
    15. Lehto, Eero, 2011. "Electricity prices in the Finnish retail market," Energy Policy, Elsevier, vol. 39(4), pages 2179-2192, April.
    16. Wilson, Chris M., 2012. "Market frictions: A unified model of search costs and switching costs," European Economic Review, Elsevier, vol. 56(6), pages 1070-1086.
    17. David Deller & Monica Giulietti & Graham Loomes & Catherine Waddams Price & Anna Moniche & Joo Young Jeon, 2021. "Switching Energy Suppliers: It’s Not All About the Money," The Energy Journal, , vol. 42(3), pages 1-26, May.
    18. Poupeau, François-Mathieu, 2009. "Domestic customers and reform of the gas sector. An organisational sociology perspective," Energy Policy, Elsevier, vol. 37(12), pages 5385-5392, December.
    19. Amountzias, Chrysovalantis & Dagdeviren, Hulya & Patokos, Tassos, 2017. "Pricing decisions and market power in the UK electricity market: A VECM approach," Energy Policy, Elsevier, vol. 108(C), pages 467-473.
    20. Daglish, Toby, 2015. "Consumer Governance in Electricity Markets," Working Paper Series 4183, Victoria University of Wellington, The New Zealand Institute for the Study of Competition and Regulation.

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    More about this item

    JEL classification:

    • L43 - Industrial Organization - - Antitrust Issues and Policies - - - Legal Monopolies and Regulation or Deregulation
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models

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