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“One more lie: the ‘Monday effect’ in Spain’s retail petrol market”

Author

Listed:
  • Juan Luis Jiménez

    () (Universidad de Las Palmas de Gran Canaria)

  • Jordi Perdiguero

    () (Universitat Autònoma de Barcelona)

Abstract

Empirical evidence drawn from the economic literature points to a low level of competition in the retail petrol market. Similar evidence can be found for the Spanish market. In fact, both Spain’s antitrust authority (Comisión Nacional de la Competencia) and its energy regulator (Comisión Nacional de la Energía) have recently initiated disciplinary proceedings against the majors on the grounds of suspected price manipulation in the retail petrol market. They are accused of cutting retail prices on Mondays so as to distort the rank position of Spain in European Union statistics in a practice that has received the name of the ‘Monday effect’. Here, we analyze this effect by constructing a database that includes daily retail prices for all petrol stations in Spain in the period 2009-2012, and a more detailed database for the city of Barcelona in 2013. Our estimations confirm that: i) in 2011 and 2012 prices fell on Mondays at retailers branded by majors; ii) prices were unchanged at stations in our two control groups; iii) prices were also seen to fall when a more detailed analysis was conducted, and this price cut was also found in 2013. In short, one more indicator of collusion in this sector and … one more lie.

Suggested Citation

  • Juan Luis Jiménez & Jordi Perdiguero, 2013. "“One more lie: the ‘Monday effect’ in Spain’s retail petrol market”," IREA Working Papers 201324, University of Barcelona, Research Institute of Applied Economics, revised Dec 2013.
  • Handle: RePEc:ira:wpaper:201324
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    File URL: http://www.ub.edu/irea/working_papers/2013/201324.pdf
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    References listed on IDEAS

    as
    1. Bello, Alejandro & Cavero, Sandra, 2008. "The Spanish retail petroleum market: New patterns of competition since the liberalization of the industry," Energy Policy, Elsevier, vol. 36(2), pages 612-626, February.
    2. Juan Jiménez & Jordi Perdiguero, 2012. "Does Rigidity of Prices Hide Collusion?," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 41(3), pages 223-248, November.
    3. Matthew S. Lewis, 2009. "Temporary Wholesale Gasoline Price Spikes Have Long-Lasting Retail Effects: The Aftermath of Hurricane Rita," Journal of Law and Economics, University of Chicago Press, vol. 52(3), pages 581-605, August.
    4. Maskin, Eric & Tirole, Jean, 1988. "A Theory of Dynamic Oligopoly, II: Price Competition, Kinked Demand Curves, and Edgeworth Cycles," Econometrica, Econometric Society, vol. 56(3), pages 571-599, May.
    5. Øystein Foros & Frode Steen, 2013. "Vertical Control and Price Cycles in Gasoline Retailing," Scandinavian Journal of Economics, Wiley Blackwell, vol. 115(3), pages 640-661, July.
    6. Doyle, Joseph & Muehlegger, Erich & Samphantharak, Krislert, 2010. "Edgeworth cycles revisited," Energy Economics, Elsevier, vol. 32(3), pages 651-660, May.
    7. Andrew Eckert, 2013. "Empirical Studies Of Gasoline Retailing: A Guide To The Literature," Journal of Economic Surveys, Wiley Blackwell, vol. 27(1), pages 140-166, February.
    8. Juan Jiménez & Jordi Perdiguero, 2011. "Does Accessibility Affect Retail Prices and Competition? An Empirical Application," Networks and Spatial Economics, Springer, vol. 11(4), pages 677-699, December.
    9. Zhongmin Wang, 2009. "(Mixed) Strategy in Oligopoly Pricing: Evidence from Gasoline Price Cycles Before and Under a Timing Regulation," Journal of Political Economy, University of Chicago Press, vol. 117(6), pages 987-1030, December.
    10. Valadkhani, Abbas, 2013. "Seasonal patterns in daily prices of unleaded petrol across Australia," Energy Policy, Elsevier, vol. 56(C), pages 720-731.
    11. Perdiguero García, Jordi, 2010. "Dynamic pricing in the spanish gasoline market: A tacit collusion equilibrium," Energy Policy, Elsevier, vol. 38(4), pages 1931-1937, April.
    12. Ignacio Contin & Aad Correlje & Emilio Huerta, 1999. "The Spanish Gasoline Market: From Ceiling Regulation to Open Market Pricing," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4), pages 1-14.
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    More about this item

    Keywords

    Petrol; Antitrust; Monday effect. JEL classification: L13; L59; L71.;

    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L59 - Industrial Organization - - Regulation and Industrial Policy - - - Other

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