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Bubbles and self-fulfilling crises

  • Edouard Challe

    ()

    (DRM - Dauphine Recherches en Management - Université Paris IX - Paris Dauphine - CNRS - Centre National de la Recherche Scientifique)

  • Xavier Ragot

    (PSE - Paris-Jourdan Sciences Economiques - CNRS - Centre National de la Recherche Scientifique - EHESS - École des hautes études en sciences sociales - ENS Paris - École normale supérieure - Paris - École des Ponts ParisTech (ENPC))

Financial crises are often associated with an endogenous credit reversal followed by a fall in asset prices and serious disruptions in the financial sector. To account for this sequence of events, this paper constructs a model where the excessive risk-taking of portfolio investors leads to a bubble in asset prices (in the spirit of Allen and Gale, "Bubbles and Crises", Economic Journal, 2000), and where the supply of credit to these investors is endogenous. We show that the interplay between the risk shifting problem and the endogeneity of credit may give rise multiple equilibria associated with different levels of lending, asset prices, and output. Stochastic equilibria lead, with positive probability, to an inefficient liquidity dry-up at the intermediate date, a market crash, and widespread failures of borrowers. The possibility of multiple equilibria and self-fulfilling crises is showed to be related to the severity of the risk shifting problem in the economy.

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Paper provided by HAL in its series PSE Working Papers with number halshs-00590568.

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Date of creation: Feb 2007
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Handle: RePEc:hal:psewpa:halshs-00590568
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  1. V. V. Chari & Patrick J. Kehoe, 2003. "Hot Money," Levine's Bibliography 506439000000000415, UCLA Department of Economics.
  2. Russell Cooper & Andrew John, 1988. "Coordinating Coordination Failures in Keynesian Models," The Quarterly Journal of Economics, Oxford University Press, vol. 103(3), pages 441-463.
  3. Allen, Franklin & Gale, Douglas, 2000. "Bubbles and Crises," Economic Journal, Royal Economic Society, vol. 110(460), pages 236-55, January.
  4. Diamond, Douglas W & Dybvig, Philip H, 1983. "Bank Runs, Deposit Insurance, and Liquidity," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 401-19, June.
  5. Reinhart, Carmen & Kaminsky, Graciela, 1998. "Financial crises in Asia and Latin America: Then and now," MPRA Paper 13877, University Library of Munich, Germany.
  6. Chang, Roberto & Velasco, Andres, 2000. "Banks, debt maturity and financial crises," Journal of International Economics, Elsevier, vol. 51(1), pages 169-194, June.
  7. Ricardo J. Caballero & Arvind Krishnamurthy, 2005. "Bubbles and Capital Flow Volatility: Causes and Risk Management," NBER Working Papers 11618, National Bureau of Economic Research, Inc.
  8. Edouard Challe, 2004. "Sunspots and predictable asset returns," Post-Print halshs-00069375, HAL.
  9. Edison, Hali J & Luangaram, Pongsak & Miller, Marcus, 2000. "Asset Bubbles, Leverage and 'Lifeboats': Elements of the East Asian Crisis," Economic Journal, Royal Economic Society, vol. 110(460), pages 309-34, January.
  10. Obstfeld, Maurice, 1996. "Models of Currency Crises with Self-fulfilling Features," CEPR Discussion Papers 1315, C.E.P.R. Discussion Papers.
  11. Franklin Allen & Douglas Gale, 1976. "Optimal Financial Crises," Center for Financial Institutions Working Papers 97-01, Wharton School Center for Financial Institutions, University of Pennsylvania.
  12. Reinhart, Carmen & Kaminsky, Graciela, 1999. "The twin crises: The causes of banking and balance of payments problems," MPRA Paper 14081, University Library of Munich, Germany.
  13. Philippe Aghion & Philippe Bacchetta & Abhijit Banerjee, 2001. "A corporate Balance-Sheet Approach to Currency Crises," Working Papers 01.05, Swiss National Bank, Study Center Gerzensee.
  14. Aghion, Philippe & Bacchetta, Philippe & Banerjee, Abhijit, 2001. "Currency crises and monetary policy in an economy with credit constraints," European Economic Review, Elsevier, vol. 45(7), pages 1121-1150.
  15. Graciela L. Kaminsky, 1998. "Currency and banking crises: the early warnings of distress," International Finance Discussion Papers 629, Board of Governors of the Federal Reserve System (U.S.).
  16. Guillermo A. Calvo, 1998. "Capital Flows and Capital-Market Crises: The Simple Economics of Sudden Stops," Journal of Applied Economics, Universidad del CEMA, vol. 0, pages 35-54, November.
  17. Velasco, Andres, 1996. "Fixed exchange rates: Credibility, flexibility and multiplicity," European Economic Review, Elsevier, vol. 40(3-5), pages 1023-1035, April.
  18. Tirole, Jean, 1985. "Asset Bubbles and Overlapping Generations," Econometrica, Econometric Society, vol. 53(6), pages 1499-1528, November.
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