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Interbank lending and the spread of bank failures: A network model of systemic risk

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  • Krause, Andreas
  • Giansante, Simone

Abstract

We model a stylized banking system where banks are characterized by the amount of capital, cash reserves and their exposure to the interbank loan market as borrowers as well as lenders. A network of interbank lending is established that is used as a transmission mechanism for the failure of banks through the system. We trigger a potential banking crisis by exogenously failing a bank and investigate the spread of this failure within the banking system. We find the obvious result that the size of the bank initially failing is the dominant factor whether contagion occurs, but for the extent of its spread the characteristics of the network of interbank loans are most important. These results have implications for the regulation of banking systems that are briefly discussed, most notably that a reliance on balance sheet regulations is not sufficient but must be supplemented by considerations for the structure of financial linkages between banks.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Behavior & Organization.

Volume (Year): 83 (2012)
Issue (Month): 3 ()
Pages: 583-608

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Handle: RePEc:eee:jeborg:v:83:y:2012:i:3:p:583-608

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Web page: http://www.elsevier.com/locate/jebo

Related research

Keywords: Interbank loans; Banking crises; Systemic risk; Network topology; Tiering; “Too big to fail”;

References

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Citations

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Cited by:
  1. Rodrigo César de Castro Miranda & Benjamin Miranda Tabak, 2013. "Contagion Risk within Firm-Bank Bivariate Networks," Working Papers Series 322, Central Bank of Brazil, Research Department.
  2. Edoardo Gaffeo & Massimo Molinari, 2014. "Macroprudential Consolidation Policy in Interbank Networks," DEM Discussion Papers 2014/01, Department of Economics and Management.
  3. Edoardo Gaffeo & Massimo Molinari, 2013. "Interbank contagion and resolution procedures: inspecting the mechanism," DEM Discussion Papers 2013/09, Department of Economics and Management.
  4. Papadimitriou, Theophilos & Gogas, Periklis & Tabak, Benjamin M., 2013. "Complex networks and banking systems supervision," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(19), pages 4429-4434.
  5. Lengnick, Matthias & Krug, Sebastian & Wohltmann, Hans-Werner, 2013. "Money creation and financial instability: An agent-based credit network approach," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy, vol. 7(32), pages 1-44.
  6. Sergio R. S. Souza & Benjamin M. Tabak & Solange M. Guerra, 2013. "Insolvency and Contagion in the Brazilian Interbank Market," Working Papers Series 320, Central Bank of Brazil, Research Department.
  7. Giansante, Simone & Chiarella, Carl & Sordi, Serena & Vercelli, Alessandro, 2012. "Structural contagion and vulnerability to unexpected liquidity shortfalls," Journal of Economic Behavior & Organization, Elsevier, vol. 83(3), pages 558-569.
  8. Toivanen, Mervi, 2013. "Contagion in the interbank network: An epidemiological approach," Research Discussion Papers 19/2013, Bank of Finland.

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