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Intermediation in Networks

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  • Siedlarek, Jan-Peter

Abstract

I study intermediation in networked markets using a stochastic model of multilateral bargaining in which traders compete on different routes through the network. I characterize stationary equilibrium payoffs as the fixed point of a set of intuitive value function equations and study efficiency and the impact of network structure on payoffs. There is never too little trade but there may be an inefficiency through too much trade in states where delay would be efficient. With homogenous trade surplus the payoffs for players that are not essential to a trade opportunity go to zero as trade frictions vanish.

Suggested Citation

  • Siedlarek, Jan-Peter, 2014. "Intermediation in Networks," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 471, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  • Handle: RePEc:trf:wpaper:471
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    References listed on IDEAS

    as
    1. Daniele Condorelli & Andrea Galeotti & Ludovic Renou, 2017. "Bilateral Trading in Networks," Review of Economic Studies, Oxford University Press, vol. 84(1), pages 82-105.
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    3. Arnold Polanski & Emiliya Lazarova, 2015. "Dynamic multilateral markets," International Journal of Game Theory, Springer;Game Theory Society, vol. 44(4), pages 815-833, November.
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    7. Craig, Ben & von Peter, Goetz, 2014. "Interbank tiering and money center banks," Journal of Financial Intermediation, Elsevier, vol. 23(3), pages 322-347.
    8. Mihai Manea, 2011. "Bargaining in Stationary Networks," American Economic Review, American Economic Association, vol. 101(5), pages 2042-2080, August.
    9. Ray, Debraj, 2003. "Contemporary Macroeconomics," OUP Catalogue, Oxford University Press, number 9780195662146 edited by Bose, Amitava.
    10. Blume, Lawrence E. & Easley, David & Kleinberg, Jon & Tardos, Éva, 2009. "Trading networks with price-setting agents," Games and Economic Behavior, Elsevier, vol. 67(1), pages 36-50, September.
    11. Rachel E. Kranton & Deborah F. Minehart, 2001. "A Theory of Buyer-Seller Networks," American Economic Review, American Economic Association, vol. 91(3), pages 485-508, June.
    12. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-1335, November.
    13. Polanski, Arnold, 2007. "Bilateral bargaining in networks," Journal of Economic Theory, Elsevier, vol. 134(1), pages 557-565, May.
    14. Douglas M. Gale & Shachar Kariv, 2007. "Financial Networks," American Economic Review, American Economic Association, vol. 97(2), pages 99-103, May.
    15. Goyal, Sanjeev & Vega-Redondo, Fernando, 2007. "Structural holes in social networks," Journal of Economic Theory, Elsevier, vol. 137(1), pages 460-492, November.
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    Citations

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    Cited by:

    1. Polanski Arnold & Cardona Daniel, 2012. "Multilevel Mediation in Symmetric Trees," Review of Network Economics, De Gruyter, vol. 11(3), pages 1-23, September.
    2. Marco van der Leij & Daan in 't Veld & Cars Hommes, 2014. "The Formation of a Core Periphery Structure in Heterogeneous Financial Networks," Tinbergen Institute Discussion Papers 14-098/II, Tinbergen Institute, revised 11 Aug 2016.
    3. Matt Elliott & Francesco Nava, 2015. "Decentralized Bargaining: Efficiency and the Core," STICERD - Theoretical Economics Paper Series /2015/567, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
    4. BEDAYO, Mikel & MAULEON, Ana & VANNETELBOSCH, Vincent, 2012. "Bargaining and delay in trading networks," CORE Discussion Papers 2012046, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    5. Bedayo, Mikel & Mauleon, Ana & Vannetelbosch, Vincent, 2016. "Bargaining in endogenous trading networks," Mathematical Social Sciences, Elsevier, vol. 80(C), pages 70-82.
    6. Schopohl, Simon, 2017. "Information transmission in hierarchies," Center for Mathematical Economics Working Papers 570, Center for Mathematical Economics, Bielefeld University.
    7. Arnold Polanski & Emiliya Lazarova, 2015. "Dynamic multilateral markets," International Journal of Game Theory, Springer;Game Theory Society, vol. 44(4), pages 815-833, November.
    8. Nava, Francesco, 2015. "Efficiency in decentralized oligopolistic markets," Journal of Economic Theory, Elsevier, vol. 157(C), pages 315-348.
    9. repec:oup:jeurec:v:15:y:2017:i:4:p:784-817. is not listed on IDEAS
    10. Elliott, M. & Nava, F., 2017. "Decentralized Bargaining in Matching Markets: Efficient Stationary Equilibria and the Core," Cambridge Working Papers in Economics 1742, Faculty of Economics, University of Cambridge.
    11. Kotowski, Maciej H. & Leister, C. Matthew, 2018. "Trading Networks and Equilibrium Intermediation," Working Paper Series rwp18-001, Harvard University, John F. Kennedy School of Government.
    12. 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.
    13. Fabien Mercier, 2016. "Intermediary networks under the rule of equi-repartition of profits," Journal of Banking and Financial Economics, University of Warsaw, Faculty of Management, vol. 1(5), pages 39-63, June.

    More about this item

    Keywords

    bargaining; financial networks; intermediation; matching; middlemen; networks; over-the-counter markets; stochastic games;

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • C78 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Bargaining Theory; Matching Theory
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation

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