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The effect of the interbank network structure on contagion and common shocks

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  • Georg, Co-Pierre

Abstract

This paper proposes a dynamic multi-agent model of a banking system with central bank. Banks optimize a portfolio of risky investments and riskless excess reserves according to their risk, return, and liquidity preferences. They are linked via interbank loans and face stochastic deposit supply. Evidence is provided that the central bank stabilizes interbank markets in the short-run only. Comparing different interbank network structures, it is shown that money-center networks are more stable than random networks. Systemic risk via contagion is compared to common shocks and it is shown that both forms of systemic risk require different optimal policy responses. --

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Bibliographic Info

Paper provided by Deutsche Bundesbank, Research Centre in its series Discussion Paper Series 2: Banking and Financial Studies with number 2011,12.

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Date of creation: 2011
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Handle: RePEc:zbw:bubdp2:201112

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Keywords: systemic risk; contagion; common shocks; multi-agent simulations;

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  1. Nier, Erlend & Yang, Jing & Yorulmazer, Tanju & Alentorn, Amadeo, 2007. "Network models and financial stability," Journal of Economic Dynamics and Control, Elsevier, vol. 31(6), pages 2033-2060, June.
  2. Viral V. Acharya & Tanju Yorulmazer, 2008. "Cash-in-the-Market Pricing and Optimal Resolution of Bank Failures," Review of Financial Studies, Society for Financial Studies, vol. 21(6), pages 2705-2742, November.
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Cited by:
  1. Fabio Caccioli & J. Doyne Farmer & Nick Foti & Daniel Rockmore, 2013. "How interbank lending amplifies overlapping portfolio contagion: A case study of the Austrian banking network," Papers 1306.3704, arXiv.org.
  2. Grzegorz Hałaj & Christoffer Kok, 2013. "Assessing interbank contagion using simulated networks," Computational Management Science, Springer, vol. 10(2), pages 157-186, June.
  3. Doris Neuberger & Roger Rissi, 2014. "Macroprudential Banking Regulation: Does One Size Fit All?," Journal of Banking and Financial Economics, University of Warsaw, Faculty of Management, vol. 1(1), pages 5-28, May.
  4. Christoffer Kok & Mattia Montagna, 2013. "Multi-layered Interbank Model for Assessing Systemic Risk," Kiel Working Papers 1873, Kiel Institute for the World Economy.
  5. 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.
  6. Fischer, Thomas & Riedler, Jesper, 2012. "Prices, debt and market structure in an agent-based model of the financial market," ZEW Discussion Papers 12-045, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  7. Giulia Iori & Rosario N. Mantegna & Luca Marotta & Salvatore Micciche' & James Porter & Michele Tumminello, 2014. "Networked relationships in the e-MID Interbank market: A trading model with memory," Papers 1403.3638, arXiv.org.
  8. Lara Mónica Machado Fernandes & Maria Rosa Borges, 2013. "Interbank Linkages and Contagion Risk in the Portuguese Banking System," Working Papers Department of Economics 2013/23, ISEG - School of Economics and Management, Department of Economics, University of Lisbon.
  9. Pinar Yesin, 2013. "Foreign Currency Loans and Systemic Risk in Europe," Working Papers 13.06, Swiss National Bank, Study Center Gerzensee.
  10. H Peyton Young & Paul Glasserman, 2013. "How Likely is Contagion in Financial Networks?," Economics Series Working Papers 642, University of Oxford, Department of Economics.
  11. Peltonen, Tuomas A. & Scheicher, Martin & Vuillemey, Guillaume, 2013. "The network structure of the CDS market and its determinants," Working Paper Series 1583, European Central Bank.
  12. Bluhm, Marcel & Faia, Ester & Krahnen, Jan Pieter, 2014. "Monetary policy implementation in an interbank network: Effects on systemic risk," SAFE Working Paper Series 46, Research Center SAFE - Sustainable Architecture for Finance in Europe, Goethe University Frankfurt.
  13. Minoiu, Camelia & Reyes, Javier A., 2013. "A network analysis of global banking: 1978–2010," Journal of Financial Stability, Elsevier, vol. 9(2), pages 168-184.
  14. Lena Tonzer, 2013. "Cross-Border Interbank Networks, Banking Risk and Contagion," FIW Working Paper series 129, FIW.
  15. Toivanen, Mervi, 2013. "Contagion in the interbank network: An epidemiological approach," Research Discussion Papers 19/2013, Bank of Finland.
  16. Hałaj, Grzegorz & Kok, Christoffer, 2014. "Modeling emergence of the interbank networks," Working Paper Series 1646, European Central Bank.
  17. Neuberger, Doris & Rissi, Roger, 2012. "Macroprudential banking regulation: Does one size fit all?," Thuenen-Series of Applied Economic Theory 124, University of Rostock, Institute of Economics.

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