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Endogenous market making and network formation

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  • Chang, Briana
  • Zhang, Shengxing

Abstract

This paper proposes a theory of intermediation in which intermediaries emerge endogenously as the choice of agents. In contrast to the previous trading models based on random matching or exogenous networks, we allow traders to explicitly choose their trading partners as well as the number of trading links in a dynamic framework. We show that traders with higher trading needs optimally choose to match with traders with lower needs for trade, and they build fewer links in equilibrium. As a result, traders with the least trading need turn out to be the most connected and have the highest gross trade volume. The model therefore endogenously generates a core-periphery trading network that we often observe: a financial architecture that involves a small number of large, interconnected institutions. We use this framework to study bid-ask spreads, trading volume, asset allocation.

Suggested Citation

  • Chang, Briana & Zhang, Shengxing, 2015. "Endogenous market making and network formation," LSE Research Online Documents on Economics 65105, London School of Economics and Political Science, LSE Library.
    • Handle: RePEc:ehl:lserod:65105
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    File URL: http://eprints.lse.ac.uk/65105/
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    References listed on IDEAS

    as
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    Cited by:

    1. Schürhoff, Norman & Hendershott, Terrence & Livdan, Dmitry & Li, Dan, 2017. "Relationship Trading in OTC Markets," CEPR Discussion Papers 12472, C.E.P.R. Discussion Papers.
    2. Batchimeg Sambalaibat, 2018. "Endogenous Specialization and Dealer Networks," 2018 Meeting Papers 1278, Society for Economic Dynamics.
    3. Athanasios Geromichalos & Lucas Herrenbrueck & Sukjoon Lee, 2023. "The Strategic Determination of the Supply of Liquid Assets," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 49, pages 1-36, July.
    4. Shen, Ji & Wei, Bin & Yan, Hongjun, 2016. "Financial Intermediation Chains in an OTC Market," MPRA Paper 74925, University Library of Munich, Germany.
    5. Simpson Zhang & Mihaela van der Schaar, 2018. "Reputational Dynamics in Financial Networks During a Crisis," Working Papers 18-03, Office of Financial Research, US Department of the Treasury.
    6. Geromichalos, Athanasios & Herrenbrueck, Lucas, 2016. "The Strategic Determination of the Supply of Liquid Assets," MPRA Paper 71454, University Library of Munich, Germany.
    7. Athanasios Geromichalos & Kuk Mo Jung, 2019. "Monetary policy and efficiency in over-the-counter financial trade," Canadian Journal of Economics, Canadian Economics Association, vol. 52(4), pages 1699-1754, November.
    8. Zachary Bethune & Bruno Sultanum & Nicholas Trachter, 2022. "An Information-based Theory of Financial Intermediation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 89(5), pages 2381-2444.
    9. Terrence Hendershott & Dan Li & Dmitry Livdan & Norman Schürhoff, 2020. "Relationship Trading in Over‐the‐Counter Markets," Journal of Finance, American Finance Association, vol. 75(2), pages 683-734, April.
    10. Jonathan Chiu & Jens Eisenschmidt & Cyril Monnet, 2020. "Relationships in the Interbank Market," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 35, pages 170-191, January.
    11. Semih Üslü, 2019. "Pricing and Liquidity in Decentralized Asset Markets," Econometrica, Econometric Society, vol. 87(6), pages 2079-2140, November.
    12. Miroslav Gabrovski & Athanasios Geromichalos & Lucas Herrenbrueck & Ioannis Kospentaris & Sukjoon Lee, 2023. "The real effects of financial disruptions in a monetary economy," Working Papers 202302, University of Hawaii at Manoa, Department of Economics.
    13. Babus, Ana & Hu, Tai-Wei, 2017. "Endogenous intermediation in over-the-counter markets," Journal of Financial Economics, Elsevier, vol. 125(1), pages 200-215.
    14. Garratt, Rodney & Zimmerman, Peter, 2020. "Centralized netting in financial networks," Journal of Banking & Finance, Elsevier, vol. 112(C).
    15. Batchimeg Sambalaibat & Artem Neklyudov, 2016. "Endogenous Specialization and Dealer Networks," 2016 Meeting Papers 1041, Society for Economic Dynamics.
    16. Semyon Malamud & Marzena Rostek, 2017. "Decentralized Exchange," American Economic Review, American Economic Association, vol. 107(11), pages 3320-3362, November.
    17. Jonathan Chiu & Jens Eisenschmidt & Cyril Monnet, 2020. "Relationships in the Interbank Market," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 35, pages 170-191, January.
    18. Zhang, Simpson & van der Schaar, Mihaela, 2020. "Reputational dynamics in financial networks during a crisis," Journal of Financial Stability, Elsevier, vol. 49(C).
    19. Athanasios Geromichalos & Lucas Herrenbrueck & Sukjoon Lee, 2023. "The Strategic Determination of the Supply of Liquid Assets," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 49, pages 1-36, July.

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    More about this item

    Keywords

    over-the-counter market; core-periphery trading network; matching; intermediation;
    All these keywords.

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • G1 - Financial Economics - - General Financial Markets
    • G20 - Financial Economics - - Financial Institutions and Services - - - General

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