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Contracts and domination in incomplete markets: what is a true core?

Author

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  • Valeriy M. Marakulin

    (Russian Academy of Sciences
    Novosibirsk State University)

Abstract

The goal of the paper is to propose and study a concept of domination by coalitions for incomplete markets. Previously elaborated in the context of contractual approach, now it is presented in more or less standard terms and style. This concept is described as a set of allocations implemented by the net trades (webs of contracts) that are characterized by a special kind of stability in future markets: (i) for every state of the world inducted allocation has to be Pareto optimal and individually rational and (ii) there is no coalition which is able to dominate the allocation via financially feasible trades in future spot markets using real assets and relative to prices specified by (i) (partial Pareto prices). This core converts into a classical one when the market turns complete. Under perfect competition conditions core allocations are GEI-equilibria. These properties prove the validity of suggested core.

Suggested Citation

  • Valeriy M. Marakulin, 2017. "Contracts and domination in incomplete markets: what is a true core?," Economic Theory Bulletin, Springer;Society for the Advancement of Economic Theory (SAET), vol. 5(1), pages 81-108, April.
    • Handle: RePEc:spr:etbull:v:5:y:2017:i:1:d:10.1007_s40505-016-0105-0
    DOI: 10.1007/s40505-016-0105-0
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    References listed on IDEAS

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    More about this item

    Keywords

    Incomplete markets; Core; Net trades; GEI-equilibrium;
    All these keywords.

    JEL classification:

    • C62 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Existence and Stability Conditions of Equilibrium
    • C71 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Cooperative Games
    • D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies
    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets

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