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Non-discrimination Clauses: Their Effect on British Retail Energy Prices

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  • Catherine Waddams Price
  • Minyan Zhu

Abstract

UK governments and the energy regulator have shown increasing concern about the health of competition in the residential energy market, following their pioneering deregulation at the end of the last century. We identify the effects of introducing the non-discrimination clauses in 2009, a major regulatory intervention and the first since deregulation. We explore the effect of this intervention on the price movements of the six major players, and find that the nature of competition in the industry has changed, with less effective rivalry between the regional incumbents and large regional competitors following the intervention; companies seem to have ‘retreated’ to their home regions, leaving a market where pricing behaviour resembles more closely a duopoly between British Gas and the regional incumbent.

Suggested Citation

  • Catherine Waddams Price & Minyan Zhu, 2016. "Non-discrimination Clauses: Their Effect on British Retail Energy Prices," The Energy Journal, , vol. 37(2), pages 111-132, April.
    • Handle: RePEc:sae:enejou:v:37:y:2016:i:2:p:111-132
    DOI: 10.5547/01956574.37.2.cpri
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    References listed on IDEAS

    as
    1. Evens Salies and Catherine Waddams Price, 2004. "Charges, Costs and Market Power: the Deregulated UK Electricity Retail Market," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3), pages 19-36.
    2. Helmut Lütkepohl, 2005. "New Introduction to Multiple Time Series Analysis," Springer Books, Springer, number 978-3-540-27752-1, December.
    3. repec:spo:wpmain:info:hdl:2441/7189 is not listed on IDEAS
    4. Miguel Flores & Catherine Waddams Price, 2013. "Consumer behaviour in the British retail electricity market," Working Paper series, University of East Anglia, Centre for Competition Policy (CCP) 2013-10, Centre for Competition Policy, University of East Anglia, Norwich, UK..
    5. Stephen Davies, Catherine Waddams Price, and Chris M. Wilson, 2014. "Nonlinear Pricing and Tariff Differentiation: Evidence from the British Electricity Market," The Energy Journal, International Association for Energy Economics, vol. 0(Number 1).
    6. Morten Hviid & Catherine Waddams Price, 2012. "Non‐Discrimination Clauses in the Retail Energy Sector," Economic Journal, Royal Economic Society, vol. 122(562), pages 236-252, August.
    7. Johansen, Soren, 1995. "Likelihood-Based Inference in Cointegrated Vector Autoregressive Models," OUP Catalogue, Oxford University Press, number 9780198774501.
    8. repec:spo:wpecon:info:hdl:2441/7189 is not listed on IDEAS
    9. 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.
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    Cited by:

    1. Simshauser, Paul, 2018. "Price discrimination and the modes of failure in deregulated retail electricity markets," Energy Economics, Elsevier, vol. 75(C), pages 54-70.
    2. Paul Simshauser, 2022. "The 2022 energy crisis: horizontal and vertical impacts of policy interventions in Australia's national electricity market," Working Papers EPRG2216, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    3. Paul Simshauser, 2021. "Vulnerable households and fuel poverty: policy targeting efficiency in Australia’s National Electricity Market," Working Papers EPRG2108, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    4. Mulder, M. & Willems, Bert, 2016. "Competition in Retail Electricity Markets : An Assessment of Ten Years Dutch Experience," Discussion Paper 2016-011, Tilburg University, Tilburg Law and Economic Center.
    5. Tomasz Rokicki & Piotr Bórawski & Barbara Gradziuk & Piotr Gradziuk & Aldona Mrówczyńska-Kamińska & Joanna Kozak & Danuta Jolanta Guzal-Dec & Kamil Wojtczuk, 2021. "Differentiation and Changes of Household Electricity Prices in EU Countries," Energies, MDPI, vol. 14(21), pages 1-21, October.
    6. Esplin, Ryan & Davis, Ben & Rai, Alan & Nelson, Tim, 2020. "The impacts of price regulation on price dispersion in Australia's retail electricity markets," Energy Policy, Elsevier, vol. 147(C).
    7. Paul Simshauser, 2021. "Lessons from Australia's National Electricity Market 1998-2018: strengths and weaknesses of the reform experience," Chapters, in: Jean-Michel Glachant & Paul L. Joskow & Michael G. Pollitt (ed.), Handbook on Electricity Markets, chapter 9, pages 242-286, Edward Elgar Publishing.
    8. Simshauser, Paul, 2023. "The 2022 energy crisis: Fuel poverty and the impact of policy interventions in Australia's National Electricity Market," Energy Economics, Elsevier, vol. 121(C).
    9. Esplin, Ryan & Best, Rohan & Scranton, Jessica & Chai, Andreas, 2022. "Who pays the loyalty tax? The relationship between socioeconomic status and switching in Australia's retail electricity markets," Energy Policy, Elsevier, vol. 164(C).
    10. Stephen Littlechild, 2019. "Promoting competition and protecting customers? Regulation of the GB retail energy market 2008–2016," Journal of Regulatory Economics, Springer, vol. 55(2), pages 107-139, April.
    11. Bruce Lyons & Robert Sugden, 2021. "Transactional fairness and pricing practices in consumer markets," Working Paper series, University of East Anglia, Centre for Competition Policy (CCP) 2021-03, Centre for Competition Policy, University of East Anglia, Norwich, UK..
    12. Simshauser, Paul, 2021. "Vulnerable households and fuel poverty: Measuring the efficiency of policy targeting in Queensland," Energy Economics, Elsevier, vol. 101(C).
    13. Chen, Huanhuan & Li, Jinke & O'Leary, Nigel & Shao, Jing, 2025. "Higher prices in a more competitive market: The paradox in the retail electricity market in the United Kingdom," Structural Change and Economic Dynamics, Elsevier, vol. 72(C), pages 374-390.
    14. Krystyna Gomółka & Piotr Kasprzak, 2022. "Household Ability of Expenditures on Electricity and Energy Resources in the Countries That Joined the EU after 2004," Energies, MDPI, vol. 15(9), pages 1-21, April.
    15. Daglish, Toby, 2016. "Consumer governance in electricity markets," Energy Economics, Elsevier, vol. 56(C), pages 326-337.
    16. 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.
    17. Xiaoping He & David Reiner, 2018. "Consumer Engagement in Energy Markets: The Role of Information and Knowledge," Working Papers EPRG 1835, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    18. Stephen Littlechild, 2021. "The challenge of removing a mistaken price cap," Economic Affairs, Wiley Blackwell, vol. 41(3), pages 391-415, October.
    19. Valadkhani, Abbas & Nguyen, Jeremy & Smyth, Russell, 2018. "Consumer electricity and gas prices across Australian capital cities: Structural breaks, effects of policy reforms and interstate differences," Energy Economics, Elsevier, vol. 72(C), pages 365-375.

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    • F0 - International Economics - - General

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