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Revisiting Jansen et al.'s Modified Cournot Model of the European Union Natural Gas Market


  • Zaifu Yang
  • Rong Zhang
  • Zongyi Zhang


In this paper we reconsider Jansen et al.'s (2012) Cournot model of the European Union natural gas market with three major suppliers Russian Gazprom, Norwegian Statoil, and Algerian Sonatrach. To reflect Russia’s geopolitical consideration, we incorporate a relative market share to Gazprom’s objective function. Compared with Jansen et al.’s use of standard market share, our study shows that the introduction of relative market share makes it not only possible to derive the same results in a more general environment, but also permits us to obtain clear-cut quantitative analysis results for equilibrium solution, consumer surplus, and social welfare. Our analysis also demonstrates for this modiï¬ ed Cournot model that by seeking a proper market share, Gazprom can achieve the same profits of a Stackelberg leader in a simultaneous move model as in the classical sequential move leader-follower model. When Gazprom pursues the control of market share besides proï¬ ts, it will be good news for the EU’s consumers but bad news for its rivals.

Suggested Citation

  • Zaifu Yang & Rong Zhang & Zongyi Zhang, 2013. "Revisiting Jansen et al.'s Modified Cournot Model of the European Union Natural Gas Market," Discussion Papers 13/12, Department of Economics, University of York.
  • Handle: RePEc:yor:yorken:13/12

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    References listed on IDEAS

    1. Bilgin, Mert, 2009. "Geopolitics of European natural gas demand: Supplies from Russia, Caspian and the Middle East," Energy Policy, Elsevier, vol. 37(11), pages 4482-4492, November.
    2. Jansen, Thijs & van Lier, Arie & van Witteloostuijn, Arjen, 2007. "A note on strategic delegation: The market share case," International Journal of Industrial Organization, Elsevier, vol. 25(3), pages 531-539, June.
    3. Finon, Dominique & Locatelli, Catherine, 2008. "Russian and European gas interdependence: Could contractual trade channel geopolitics?," Energy Policy, Elsevier, vol. 36(1), pages 423-442, January.
    4. Jansen, Thijs & van Lier, Arie & van Witteloostuijn, Arjen & Boon von Ochssée, Tim, 2012. "A modified Cournot model of the natural gas market in the European Union: Mixed-motives delegation in a politicized environment," Energy Policy, Elsevier, vol. 41(C), pages 280-285.
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    More about this item


    Natural gas market; Cournot model; Stackelberg leader’s advantage; Nonproï¬ t incentives; Relative market share; European Union;

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L95 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Gas Utilities; Pipelines; Water Utilities
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices

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