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Assessing the role of interbank network structure in business and financial cycle analysis

Author

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  • Jean-Yves Gnabo

    (Université de Namur)

  • Nicolas K. Scholtes

    (European Central Bank & Université de Namur)

Abstract

We develop a DSGE model incorporating a banking sector comprising 4 banks connected in a stylised network representing their interbank exposures. The micro-founded framework allows inter alia for endogenous bank defaults and bank capital requirements. In addition, we introduce a central bank who intervenes directly in the interbank market through liquidity injections. Model dynamics are driven by standard productivity as well as banking sector shocks. In our simulations, we incorporate four different interbank network structures: Complete, cyclical and two variations of the coreperiphery topology. Comparison of interbank market dynamics under the different topologies reveals a strong stabilising role played by the complete network while the remaining structures show a non-negligible shock propagation mechanism. Finally, we show that central bank interventions can counteract negative banking shocks with the effect depending again on the network structure.

Suggested Citation

  • Jean-Yves Gnabo & Nicolas K. Scholtes, 2016. "Assessing the role of interbank network structure in business and financial cycle analysis," Working Paper Research 307, National Bank of Belgium.
    • Handle: RePEc:nbb:reswpp:201610-307
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    References listed on IDEAS

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    Cited by:

    1. Debarsy, Nicolas & Dossougoin, Cyrille & Ertur, Cem & Gnabo, Jean-Yves, 2018. "Measuring sovereign risk spillovers and assessing the role of transmission channels: A spatial econometrics approach," Journal of Economic Dynamics and Control, Elsevier, vol. 87(C), pages 21-45.
    2. van Holle, Frederiek, 2017. "Essays in empirical finance and monetary policy," Other publications TiSEM 30d11a4b-7bc9-4c81-ad24-5, Tilburg University, School of Economics and Management.
    3. Wang, Bo & Xiao, Yang, 2024. "Measuring spatial impacts and tracking cross-border risk," International Review of Economics & Finance, Elsevier, vol. 92(C), pages 50-84.
    4. R. Wouters, 2016. "The transmission mechanism of new and traditional instruments of monetary and macroprudential policy," Economic Review, National Bank of Belgium, issue iii, pages 105-117, December.

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    More about this item

    Keywords

    Interbank network; DSGE model; banking; liquidity injections;
    All these keywords.

    JEL classification:

    • D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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