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Systemic risk in an interconnected banking system with endogenous asset markets

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  • Bluhm, Marcel
  • Krahnen, Jan Pieter

Abstract

We analyze the emergence of systemic risk in a network model of interconnected bank balance sheets. The model incorporates multiple sources of systemic risk, including size of financial institutions, direct exposure from interbank lendings, and asset fire sales. We suggest a new macroprudential risk management approach building on a system wide value at risk (SVaR). Under the SVaR metric, the contribution of individual banks to systemic risk is well defined and can be approximated by a Shapley value-type measure. We show that, in a SVaR regime, a fair systemic risk charge which is proportional to a bank's individual contribution to systemic risk diverges from the optimal macroprudential capitalization of the banks from a planner's perspective. The results have implications for the design of macroprudential capital surcharges.

Suggested Citation

  • Bluhm, Marcel & Krahnen, Jan Pieter, 2014. "Systemic risk in an interconnected banking system with endogenous asset markets," SAFE Working Paper Series 48, Research Center SAFE - Sustainable Architecture for Finance in Europe, Goethe University Frankfurt.
  • Handle: RePEc:zbw:safewp:48
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    Cited by:

    1. Wolski, Marcin & van de Leur, Michiel, 2016. "Interbank loans, collateral and modern monetary policy," Journal of Economic Dynamics and Control, Elsevier, vol. 73(C), pages 388-416.
    2. Cathy Yi-Hsuan Chen & Wolfgang Karl Härdle & Yarema Okhrin, 2017. "Tail event driven networks of SIFIs," SFB 649 Discussion Papers SFB649DP2017-004, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
    3. Danielsson, Jon & James, Kevin R. & Valenzuela, Marcela & Zer, Ilknur, 2016. "Model risk of risk models," LSE Research Online Documents on Economics 66365, London School of Economics and Political Science, LSE Library.
    4. Danielsson, Jon & James, Kevin R. & Valenzuela, Marcela & Zer, Ilknur, 2016. "Model risk of risk models," Journal of Financial Stability, Elsevier, pages 79-91.
    5. Susanna Calimani & Grzegorz Hałaj & Dawid Żochowski, 2017. "Simulating fire-sales in a banking and shadow banking system," ESRB Working Paper Series 46, European Systemic Risk Board.
    6. Niedrig, Tobias, 2015. "Optimal asset allocation for interconnected life insurers in the low interest rate environment under solvency regulation," SAFE Working Paper Series 97, Research Center SAFE - Sustainable Architecture for Finance in Europe, Goethe University Frankfurt.
    7. Krahnen, Jan Pieter & Pelizzon, Loriana, 2016. ""Predatory" margins and the regulation and supervision of central counterparty clearing houses (CCPs)," SAFE White Paper Series 41, Goethe University Frankfurt, Research Center SAFE - Sustainable Architecture for Finance in Europe.
    8. Karmakar, Sudipto, 2016. "Macroprudential regulation and macroeconomic activity," Journal of Financial Stability, Elsevier, pages 166-178.
    9. Bluhm, Marcel, 2015. "Interbank funding as insurance mechanism for (persistent) liquidity shocks," SAFE Working Paper Series 117, Research Center SAFE - Sustainable Architecture for Finance in Europe, Goethe University Frankfurt.
    10. Jose Fique, 2016. "A Microfounded Design of Interconnectedness-Based Macroprudential Policy," Staff Working Papers 16-6, Bank of Canada.
    11. 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.
    12. 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.

    More about this item

    Keywords

    systemic risk; systemic risk charge; macroprudential supervision; Shapley value; financial network;

    JEL classification:

    • C15 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Statistical Simulation Methods: General
    • G01 - Financial Economics - - General - - - Financial Crises
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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