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Vulnerable Banks

  • Greenwood, Robin
  • Landier, Augustin
  • Thesmar, David

When a bank experiences an adverse shock to its equity capital, one way to return to target leverage is to sell assets. The price impact of the fire sale may impact other institutions with common exposures, resulting in contagion. We propose a simple framework that accounts for this effect. This framework explains how the distribution of leverage and risk exposures across banks contributes to systemic risk. We use it to compute a bank's exposure to sector-wide deleveraging, as well as the spillover of a bank's deleveraging onto other banks. We explain how the model can be used to evaluate a variety of policy proposals, such as caps on size or leverage, mergers of good and bad banks, and equity injections. We then apply the framework to measure (a) the vulnerability of European banks to sovereign risk in 2010 and 2011, and (b) the vulnerability of US financial institutions between 2001 and 2010. In our model, \microprudential" interventions, which target the solvency of individual banks are always less effective than \macroprudential", policies which aim to minimize spillovers across firms.

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Paper provided by Institut d'Économie Industrielle (IDEI), Toulouse in its series IDEI Working Papers with number 700.

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Date of creation: Nov 2011
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Publication status: Published in Journal of Financial Economics, 2015.
Handle: RePEc:ide:wpaper:25524
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  1. Diebold, Francis X. & Yılmaz, Kamil, 2014. "On the network topology of variance decompositions: Measuring the connectedness of financial firms," Journal of Econometrics, Elsevier, vol. 182(1), pages 119-134.
  2. Kalemli-Ozcan, Sebnem & Papaioannou, Elias & Peydró, José-Luis, 2010. "Financial regulation, financial globalization and the synchronization of economic activity," Working Paper Series 1221, European Central Bank.
  3. Andrew Ang & Francis A. Longstaff, 2011. "Systemic Sovereign Credit Risk: Lessons from the U.S. and Europe," NBER Working Papers 16982, National Bureau of Economic Research, Inc.
  4. Acharya, Viral V & Pedersen, Lasse H & Philippon, Thomas & Richardson, Matthew P, 2012. "Measuring Systemic Risk," CEPR Discussion Papers 8824, C.E.P.R. Discussion Papers.
  5. Markus K. Brunnermeier, 2009. "Deciphering the Liquidity and Credit Crunch 2007-2008," Journal of Economic Perspectives, American Economic Association, vol. 23(1), pages 77-100, Winter.
  6. Allen, Franklin & Babus, Ana & Carletti, Elena, 2013. "Asset Commonality, Debt Maturity and Systemic Risk," Working Papers 10-30, University of Pennsylvania, Wharton School, Weiss Center.
  7. Andrei Shleifer & Robert Vishny, 2011. "Fire Sales in Finance and Macroeconomics," Journal of Economic Perspectives, American Economic Association, vol. 25(1), pages 29-48, Winter.
  8. Tobias Adrian & Hyun Song Shin, 2008. "Liquidity and leverage," Staff Reports 328, Federal Reserve Bank of New York.
  9. Franklin Allen & Ana Babus & Elena Carletti, 2010. "Financial Connections and Systemic Risk," NBER Working Papers 16177, National Bureau of Economic Research, Inc.
  10. Daron Acemoglu & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2010. "Cascades in Networks and Aggregate Volatility," NBER Working Papers 16516, National Bureau of Economic Research, Inc.
  11. Viral V. Acharya, 2010. "Measuring systemic risk," Proceedings 1140, Federal Reserve Bank of Chicago.
  12. Jotikasthira, Chotibhak & Lundblad, Christian T & Ramadorai, Tarun, 2009. "Asset fire sales and purchases and the international transmission of financial shocks," CEPR Discussion Papers 7595, C.E.P.R. Discussion Papers.
  13. Greenwood, Robin & Thesmar, David, 2011. "Stock price fragility," Journal of Financial Economics, Elsevier, vol. 102(3), pages 471-490.
  14. Stefano Giglio, 2011. "Credit default swap spreads and systemic financial risk," Proceedings 1122, Federal Reserve Bank of Chicago.
  15. Viral V Acharya & Philipp Schnabl, 2010. "Do Global Banks Spread Global Imbalances? Asset-Backed Commercial Paper during the Financial Crisis of 2007–09," IMF Economic Review, Palgrave Macmillan, vol. 58(1), pages 37-73, August.
  16. Shleifer, Andrei & Vishny, Robert W, 1992. " Liquidation Values and Debt Capacity: A Market Equilibrium Approach," Journal of Finance, American Finance Association, vol. 47(4), pages 1343-66, September.
  17. Gabrielle Demange, 2012. "Contagion in financial networks: a threat index," PSE Working Papers halshs-00662513, HAL.
  18. Wolf Wagner, 2011. "Systemic Liquidation Risk and the Diversity–Diversification Trade‐Off," Journal of Finance, American Finance Association, vol. 66(4), pages 1141-1175, 08.
  19. repec:fip:fedhpr:y:2010:i:may:p:65-71 is not listed on IDEAS
  20. Hamed Amini & Rama Cont & Andreea Minca, 2012. "Stress Testing The Resilience Of Financial Networks," International Journal of Theoretical and Applied Finance (IJTAF), World Scientific Publishing Co. Pte. Ltd., vol. 15(01), pages 1250006-1-1.
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