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Forward trading and collusion in supply functions

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  • Wölfing, Nikolas

Abstract

This paper studies the effect of forward contracts on the stability of collusion among firms, competing in supply functions on the spot market. A forward market can increase the range of discount factors which allow to sustain collusion. On the contrary, collusion is destabilised when a potential deviator sells a significant amount forward. Results do not depend on the type (financial or physical) of contract fulfilment and are robust to different levels of demand uncertainty. As a policy implication, the study finds that liquid and anonymous forward markets are incompatible with collusion.

Suggested Citation

  • Wölfing, Nikolas, 2019. "Forward trading and collusion in supply functions," ZEW Discussion Papers 19-003, ZEW - Leibniz Centre for European Economic Research.
  • Handle: RePEc:zbw:zewdip:19003
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    References listed on IDEAS

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    More about this item

    Keywords

    forward trading; collusion; supply function equilibrium;
    All these keywords.

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing

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