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Liquidity, Contagion and Financial Crisis

Listed author(s):
  • Guembel, Alexander
  • Sussman, Oren

We develop a theoretical model where a redistribution of bank capital (e.g., due to reckless trading and/or faulty risk management) leads to a “freeze” of the interbank market. The fire-sale market plays a central role in spreading the crisis to the real economy. In crisis, credit rationing and liquidity hoarding appear simultaneously; endogenous levels of collateral (or margin requirements) are affected by both low fire-sale prices and high lending rates. Relative to previous analysis, this dual channel generates a stronger price and output effect. The main focus is on the policy analysis. We show that i) non-discriminating equity injections are more effective than liquidity injections, but in both the welfare effect is an order-of-magnitude lower than the price effect; ii) a discriminating policy that bails out only distressed banks is feasible but will be limited by incentive-compatibility constraints; iii) a restriction on international capital flows has an ambiguous effect on welfare.

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Paper provided by Toulouse School of Economics (TSE) in its series TSE Working Papers with number 10-240.

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Date of creation: 25 Jun 2010
Handle: RePEc:tse:wpaper:24590
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  8. Ana Fostel & John Geanakoplos, 2008. "Collateral restrictions and liquidity under-supply: a simple model," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 35(3), pages 441-467, June.
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  11. Douglas W. Diamond & Raghuram G. Rajan, 2009. "Fear of Fire Sales and the Credit Freeze," NBER Working Papers 14925, National Bureau of Economic Research, Inc.
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  14. 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.
  15. Goodhart, Charles A. E. & Sunirand, Pojanart & Tsomocos, Dimitrios P., 2004. "A model to analyse financial fragility: applications," Journal of Financial Stability, Elsevier, vol. 1(1), pages 1-30, September.
  16. Bernanke, Ben & Gertler, Mark, 1989. "Agency Costs, Net Worth, and Business Fluctuations," American Economic Review, American Economic Association, vol. 79(1), pages 14-31, March.
  17. Reinhart, Carmen M. & Rogoff, Kenneth S., 2013. "Banking crises: An equal opportunity menace," Journal of Banking & Finance, Elsevier, vol. 37(11), pages 4557-4573.
  18. Franklin Allen & Douglas Gale, 2005. "From Cash-in-the-Market Pricing to Financial Fragility," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 535-546, 04/05.
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