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An economic model of contagion in interbank lending markets

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  • Dan Ladley

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Abstract

This paper considers the stability of a financial system in which heterogenous banks interact through a lending market. We analyse a discrete time model in which households and banks are located on a circular city. Households present banks with risky investment opportunities, which banks fund through deposits and interbank borrowing. In the event of bankruptcy, a bank defaults on its interbank loans potentially resulting in contagion and losses for other banks. Through simulation we examine the vulnerability of the financial system to systemic events, demonstrating the non-linear relationship between market concentration, shock severity and bankruptcies. The role and effect of regulatory actions such as reserve requirements, minimum bank capitalisation and constraints on the size of borrowing relationships, are considered in limiting these effects.

Suggested Citation

  • Dan Ladley, 2010. "An economic model of contagion in interbank lending markets," Discussion Papers in Economics 11/06, Department of Economics, University of Leicester, revised Dec 2010.
  • Handle: RePEc:lec:leecon:11/06
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    References listed on IDEAS

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    1. Antoni Bosch-Domenech & Shyam Sunder, 2000. "Tracking the Invisible Hand: Convergence of Double Auctions to Competitive Equilibrium," Computational Economics, Springer;Society for Computational Economics, vol. 16(3), pages 257-284, December.
    2. Delli Gatti, Domenico & Gallegati, Mauro & Greenwald, Bruce & Russo, Alberto & Stiglitz, Joseph E., 2006. "Business fluctuations in a credit-network economy," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 370(1), pages 68-74.
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    Cited by:

    1. Georgescu, Oana-Maria, 2015. "Contagion in the interbank market: Funding versus regulatory constraints," Journal of Financial Stability, Elsevier, vol. 18(C), pages 1-18.
    2. Song, Jae Wook & Ko, Bonggyun & Cho, Poongjin & Chang, Woojin, 2016. "Time-varying causal network of the Korean financial system based on firm-specific risk premiums," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 458(C), pages 287-302.
    3. Gabbi, Giampaolo & Iori, Giulia & Jafarey, Saqib & Porter, James, 2015. "Financial regulations and bank credit to the real economy," Journal of Economic Dynamics and Control, Elsevier, vol. 50(C), pages 117-143.
    4. repec:eee:riibaf:v:43:y:2018:i:c:p:79-89 is not listed on IDEAS
    5. Alexander Lipton, 2016. "Modern Monetary Circuit Theory, Stability Of Interconnected Banking Network, And Balance Sheet Optimization For Individual Banks," International Journal of Theoretical and Applied Finance (IJTAF), World Scientific Publishing Co. Pte. Ltd., vol. 19(06), pages 1-57, September.
    6. Georg, Co-Pierre, 2014. "Contagious herding and endogenous network formation in financial networks," Working Paper Series 1700, European Central Bank.
    7. Fischer, Thomas & Riedler, Jesper, 2014. "Prices, debt and market structure in an agent-based model of the financial market," Journal of Economic Dynamics and Control, Elsevier, vol. 48(C), pages 95-120.
    8. De Kamps, Marc & Ladley, Daniel & Simaitis, Aistis, 2014. "Heterogeneous beliefs in over-the-counter markets," Journal of Economic Dynamics and Control, Elsevier, vol. 41(C), pages 50-68.
    9. Alexander Lipton, 2015. "Modern Monetary Circuit Theory, Stability of Interconnected Banking Network, and Balance Sheet Optimization for Individual Banks," Papers 1510.07608, arXiv.org.
    10. Cañón, Carlos & Margaretic, Paula, 2014. "Correlated bank runs, interbank markets and reserve requirements," Journal of Banking & Finance, Elsevier, vol. 49(C), pages 515-533.
    11. Dengbao Yao & Xiaoxing Liu & Xu Zhang, 2016. "Financial contagion in interbank network," International Journal of Monetary Economics and Finance, Inderscience Enterprises Ltd, vol. 9(2), pages 132-148.
    12. Tao Xu & Jianmin He & Shouwei Li, 2016. "Multi-Channel Contagion In Dynamic Interbank Market Network," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 19(06n07), pages 1-25, September.
    13. Iori, Giulia & Mantegna, Rosario N. & Marotta, Luca & Miccichè, Salvatore & Porter, James & Tumminello, Michele, 2015. "Networked relationships in the e-MID interbank market: A trading model with memory," Journal of Economic Dynamics and Control, Elsevier, vol. 50(C), pages 98-116.
    14. repec:eee:ecmode:v:64:y:2017:i:c:p:589-600 is not listed on IDEAS
    15. Montagna, Mattia & Kok, Christoffer, 2013. "Multi-layered interbank model for assessing systemic risk," Kiel Working Papers 1873, Kiel Institute for the World Economy (IfW).
    16. Jose Fique, 2016. "A Microfounded Design of Interconnectedness-Based Macroprudential Policy," Staff Working Papers 16-6, Bank of Canada.
    17. Jose Fique, 2015. "A Microfounded Design of Interconnectedness-Based Macroprudential Regulation," Caepr Working Papers 2015-008 Classification-D, Center for Applied Economics and Policy Research, Economics Department, Indiana University Bloomington.
    18. Aymanns, Christoph & Georg, Co-Pierre, 2015. "Contagious synchronization and endogenous network formation in financial networks," Journal of Banking & Finance, Elsevier, vol. 50(C), pages 273-285.
    19. Laura Capera & Juan Sebastián Lemus & Dairo Estrada, "undated". "Relaciones crediticias y riesgo de contagio en el mercado interbancario no colateralizado colombiano," Temas de Estabilidad Financiera 077, Banco de la Republica de Colombia.
    20. Augusto Hasman, 2013. "A Critical Review Of Contagion Risk In Banking," Journal of Economic Surveys, Wiley Blackwell, vol. 27(5), pages 978-995, December.
    21. Yuri Biondi & Feng Zhou, 2017. "Interbank Credit and the Money Manufacturing Process. A Systemic Perspective on Financial Stability," Papers 1702.08774, arXiv.org.
    22. Silva, Walmir & Kimura, Herbert & Sobreiro, Vinicius Amorim, 2017. "An analysis of the literature on systemic financial risk: A survey," Journal of Financial Stability, Elsevier, vol. 28(C), pages 91-114.
    23. Matjaž Steinbacher & Mitja Steinbacher & Matej Steinbacher, 2016. "Robustness of banking networks to idiosyncratic and systemic shocks: a network-based approach," Journal of Economic Interaction and Coordination, Springer;Society for Economic Science with Heterogeneous Interacting Agents, vol. 11(1), pages 95-117, April.

    More about this item

    Keywords

    Systemic risk; Interbank lending; Regulation; Network; Heterogeneity;

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • C63 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computational Techniques

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