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Imperfect Knowledge about Asset Prices and Credit Cycles

  • Pei Kuang

    ()

    (University of Birmingham)

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    I develop an equilibrium model with collateral constraints in which rational agents are uncertain and learn about the equilibrium mapping between fundamentals and collateral prices. Bayesian updating of beliefs by agents can endogenously generate booms and busts in collateral prices and largely strengthen the role of collateral constraints as an amplification mechanism through the interaction of agents?' beliefs, collateral prices and credit limits. Over-optimism or pessimism is fueled when a surprise in price expectations is interpreted partially by the agents as a permanent change in the parameters governing the collateral price process and is validated by subsequently realized prices. I show that the model can quantitatively account for the recent US boom-bust cycle in house prices, household debt and aggregate consumption dynamics during 2001-2008. I also demonstrate that the leveraged economy with a higher steady state leverage ratio is more prone to self-reinforcing learning dynamics.

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    File URL: http://www.st-andrews.ac.uk/economics/repecfiles/2/1303.pdf
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    Paper provided by Centre for Dynamic Macroeconomic Analysis in its series CDMA Working Paper Series with number 201303.

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    Date of creation: 01 Jan 2013
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    Handle: RePEc:san:cdmawp:1303
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    1. Juan Cordoba & Marla Ripoll, 2002. "Credit Cycles Redux," Macroeconomics 0210004, EconWPA.
      • Juan-Carlos Cordoba & Marla Ripoll, 2004. "Credit Cycles Redux," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 45(4), pages 1011-1046, November.
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    16. Assenza, Tiziana & Berardi, Michele, 2009. "Learning in a credit economy," Journal of Economic Dynamics and Control, Elsevier, vol. 33(5), pages 1159-1169, May.
    17. Zheng Liu & Pengfei Wang & Tao Zha, 2011. "Land-price dynamics and macroeconomic fluctuations," Working Paper Series 2011-26, Federal Reserve Bank of San Francisco.
    18. Klaus Adam & Albert Marcet & Juan Pablo Nicolini, 2011. "Stock Market Volatility and Learning," CEP Discussion Papers dp1077, Centre for Economic Performance, LSE.
    19. Eva Carceles-Poveda & Chryssi Giannitsarou, 2007. "Online Appendix to Asset Pricing with Adaptive Learning," Technical Appendices carceles08, Review of Economic Dynamics.
    20. Klaus Adam & Pei Kuang & Albert Marcet, 2012. "House Price Booms and the Current Account," NBER Macroeconomics Annual, University of Chicago Press, vol. 26(1), pages 77 - 122.
    21. Pei Kuang, 2013. "A Note on Learning in a Credit Economy," Discussion Papers 14-08, Department of Economics, University of Birmingham.
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