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Bargaining in endogenous trading networks

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Listed:
  • BEDAOY, Mikel
  • MAULEON, Ana
  • VANNETELBOSCH, Vincent

Abstract

We study a model in which heterogeneous agents first form a trading network where linking costs are positive but infinitesimally small. Then, a seller and a buyer are randomly selected among the agents to bargain through a chain of intermediaries. We determine both the trading path and the allocation of the surplus among the seller, the buyer and the intermediaries at equilibrium. We show that, under the initiator bargaining protocol, a trading network is pairwise stable if it is a core–periphery network where the core consists of all impatient agents who are linked to each other and the periphery consists of all patient agents who have a single link towards an impatient agent. Once agents do not know the impatience of other agents, each bilateral bargaining session may involve delay. Then, core–periphery networks may not be pairwise stable because agents may prefer to add links for reducing the length of trading paths and so avoiding costly delays in reaching a global agreement.
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Suggested Citation

  • BEDAOY, Mikel & MAULEON, Ana & VANNETELBOSCH, Vincent, 2016. "Bargaining in endogenous trading networks," LIDAM Reprints CORE 2738, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    • Handle: RePEc:cor:louvrp:2738
    Note: In : Mathematical Social Sciences, 80, 2016, p. 70-82
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    Cited by:

    1. Brassil, Anthony & Nodari, Gabriela, 2021. "A Density-Based estimator of core/periphery network structures," Journal of Banking & Finance, Elsevier, vol. 125(C).
    2. Syngjoo Choi & Andrea Galeotti & Sanjeev Goyal, 2017. "Trading in Networks: Theory and Experiments," Journal of the European Economic Association, European Economic Association, vol. 15(4), pages 784-817.
    3. in 't Veld, Daan & van der Leij, Marco & Hommes, Cars, 2020. "The formation of a core-periphery structure in heterogeneous financial networks," Journal of Economic Dynamics and Control, Elsevier, vol. 119(C).
    4. Olaizola, Norma & Valenciano, Federico, 2024. "Core–periphery and nested networks emerging from a simple model of network formation," Mathematical Social Sciences, Elsevier, vol. 129(C), pages 42-51.
    5. Bougheas, Spiros, 2022. "Contagion in networks: Stability and efficiency," Mathematical Social Sciences, Elsevier, vol. 115(C), pages 64-77.

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