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Contagion in a network of heterogeneous banks

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  • Gençay, Ramazan
  • Pang, Hao
  • Tseng, Michael C.
  • Xue, Yi

Abstract

We consider a financial network where banks are heterogeneous in scale and each bank has only local knowledge regarding the network. Each bank must make counterparty and portfolio decisions while anticipating uncertainty regarding the network structure. Such network uncertainty is an important consideration in banks’ risk management practice, which aims to minimize the effect of exogenous liquidity shocks and hedge against possible fire-sale in asset markets. We show that network uncertainty gives rise to an endogenous core-periphery structure which is optimal in mitigating financial contagion yet concentrates systemic risk at the core of big banks.

Suggested Citation

  • Gençay, Ramazan & Pang, Hao & Tseng, Michael C. & Xue, Yi, 2020. "Contagion in a network of heterogeneous banks," Journal of Banking & Finance, Elsevier, vol. 111(C).
    • Handle: RePEc:eee:jbfina:v:111:y:2020:i:c:s0378426619302985
    DOI: 10.1016/j.jbankfin.2019.105725
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    Cited by:

    1. Kevin F. Kiernan & Vladimir Yankov & Filip Zikes, 2021. "Liquidity Provision and Co-insurance in Bank Syndicates," Finance and Economics Discussion Series 2021-060, Board of Governors of the Federal Reserve System (U.S.).
    2. Shi, Qing & Sun, Xiaoqi & Jiang, Yile, 2022. "Concentrated commonalities and systemic risk in China's banking system: A contagion network approach," International Review of Financial Analysis, Elsevier, vol. 83(C).
    3. Roy Cerqueti & Francesca Pampurini & Annagiulia Pezzola & Anna Grazia Quaranta, 2022. "Dangerous liasons and hot customers for banks," Review of Quantitative Finance and Accounting, Springer, vol. 59(1), pages 65-89, July.
    4. Yuan, Ying & Wang, Haiying & Jin, Xiu, 2022. "Pandemic-driven financial contagion and investor behavior: Evidence from the COVID-19," International Review of Financial Analysis, Elsevier, vol. 83(C).

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    More about this item

    Keywords

    Financial networks; Contagion; Heterogeneous banks; Core-periphery structure; Network externality;
    All these keywords.

    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies; Actuarial Studies
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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