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Theoretical notes on bubbles and the current crisis

We explore a view of the crisis as a shock to investor sentiment that led to the collapse of a bubble or pyramid scheme in financial markets. We embed this view in a standard model of the financial accelerator and explore its empirical and policy implications. In particular, we show how the model can account for: (i) a gradual and protracted expansionary phase followed by a sudden and sharp recession; (ii) the connection (or lack of connection!) between financial and real economic activity and; (iii) a fast and strong transmission of shocks across countries. We also use the model to explore the role of fiscal policy.

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Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 1222.

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Date of creation: May 2010
Date of revision: Feb 2011
Handle: RePEc:upf:upfgen:1222
Contact details of provider: Web page: http://www.econ.upf.edu/

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  1. Kraay, Aart & Ventura, Jaume, 2005. "The dot-com bubble, the Bush deficits, and the U.S. current account," Policy Research Working Paper Series 3672, The World Bank.
  2. Charles T. Carlstrom & Timothy S. Fuerst, 1996. "Agency costs, net worth, and business fluctuations: a computable general equilibrium analysis," Working Paper 9602, Federal Reserve Bank of Cleveland.
  3. Alberto Martin & Jaume Ventura, 2010. "Economic Growth with Bubbles," NBER Working Papers 15870, National Bureau of Economic Research, Inc.
  4. Grossman, Gene M. & Yanagawa, Noriyuki, 1993. "Asset bubbles and endogenous growth," Journal of Monetary Economics, Elsevier, vol. 31(1), pages 3-19, February.
  5. Ricardo J. Caballero & Emmanuel Farhi & Pierre-Olivier Gourinchas, 2008. "Financial Crash, Commodity Prices and Global Imbalances," NBER Working Papers 14521, National Bureau of Economic Research, Inc.
  6. Saint-Paul, Gilles, 1992. "Fiscal Policy in an Endogenous Growth Model," The Quarterly Journal of Economics, MIT Press, vol. 107(4), pages 1243-59, November.
  7. Jaume Ventura, 2004. "Bubbles and capital flows," 2004 Meeting Papers 102, Society for Economic Dynamics.
  8. Paul A. Samuelson, 1958. "An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money," Journal of Political Economy, University of Chicago Press, vol. 66, pages 467.
  9. Jesús Fernández-Villaverde & Lee Ohanian, 2010. "The Spanish Crisis from a Global Perspective," Working Papers 2010-03, FEDEA.
  10. John Moore & Nobuhiro Kiyotaki, . "Credit Cycles," Discussion Papers 1995-5, Edinburgh School of Economics, University of Edinburgh.
  11. Caballero, Ricardo J. & Krishnamurthy, Arvind, 2006. "Bubbles and capital flow volatility: Causes and risk management," Journal of Monetary Economics, Elsevier, vol. 53(1), pages 35-53, January.
  12. Tirole, Jean, 1985. "Asset Bubbles and Overlapping Generations," Econometrica, Econometric Society, vol. 53(6), pages 1499-1528, November.
  13. King, Ian & Ferguson, Don, 1993. "Dynamic inefficiency, endogenous growth, and Ponzi games," Journal of Monetary Economics, Elsevier, vol. 32(1), pages 79-104, August.
  14. Azariadis Costas & Smith Bruce D., 1993. "Adverse Selection in the Overlapping Generations Model: The Case of Pure Exchange," Journal of Economic Theory, Elsevier, vol. 60(2), pages 277-305, August.
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