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The equity price channel in a New-Keynesian DSGE model with financial frictions and banking

  • Hylton Hollander

    ()

    (Department of Economics, University of Stellenbosch)

  • Guangling Liu

    ()

    (Department of Economics, University of Stellenbosch)

This paper studies the role of the equity price channel in business cycle fluctuations, and highlights the equity price channel as a different aspect to general equilibrium models with financial frictions and, as a result, emphasizes the systemic influence of financial markets on the real economy. We develop a canonical New-Keynesian DSGE model with a tractable role for the equity market in banking, entrepreneur and household economic activities. The model is estimated with Bayesian techniques using U.S. data over the sample period 1982Q01 - 2012Q01. We show that a New Keynesian DSGE model with an equity price channel well mimics the U.S. business cycle. The model reproduces the strong procyclicality of the equity market. The equity price channel significantly exacerbates business cycle fluctuations through both financial accelerator and bank capital channels. Our results support the increasing emphasis on common equity capital in Basel III regulations. This is beneficial in terms of financial stability, but amplifies and propagates shocks to the real economy.

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File URL: http://www.ekon.sun.ac.za/wpapers/2013/wp162013/wp-16-2013.1.pdf
File Function: Revised version (version 2), 2014
Download Restriction: no

Paper provided by Stellenbosch University, Department of Economics in its series Working Papers with number 16/2013.

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Date of creation: 2013
Date of revision: 2014
Handle: RePEc:sza:wpaper:wpapers192
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  1. Harald Uhlig, 2007. "Explaining Asset Prices with External Habits and Wage Rigidities in a DSGE Model," 2007 Meeting Papers 97, Society for Economic Dynamics.
  2. Michele Boldrin & Lawrence J. Christiano & Jonas D. M. Fisher, 2000. "Habit persistence, asset returns and the business cycle," Staff Report 280, Federal Reserve Bank of Minneapolis.
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  4. Meh, Césaire A. & Moran, Kevin, 2010. "The role of bank capital in the propagation of shocks," Journal of Economic Dynamics and Control, Elsevier, vol. 34(3), pages 555-576, March.
  5. Frank Smets & Raf Wouters, 2007. "Shocks and Frictions in US Business Cycles : a Bayesian DSGE Approach," Working Paper Research 109, National Bank of Belgium.
  6. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
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  8. Andrea Gerali & Stefano Neri & Luca Sessa & Federico M. Signoretti, 2010. "Credit and Banking in a DSGE Model of the Euro Area," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 42(s1), pages 107-141, 09.
  9. Matteo Iacoviello, 2005. "House Prices, Borrowing Constraints, and Monetary Policy in the Business Cycle," American Economic Review, American Economic Association, vol. 95(3), pages 739-764, June.
  10. Matteo Iacoviello & Stefano Neri, 2010. "Housing Market Spillovers: Evidence from an Estimated DSGE Model," American Economic Journal: Macroeconomics, American Economic Association, vol. 2(2), pages 125-64, April.
  11. Efrem Castelnuovo & Salvatore Nisticò, 2010. "Stock Market Conditions and Monetary Policy in a DSGE Model for the U.S," "Marco Fanno" Working Papers 0107, Dipartimento di Scienze Economiche "Marco Fanno".
  12. Brzoza-Brzezina, Michał & Kolasa, Marcin & Makarski, Krzysztof, 2013. "The anatomy of standard DSGE models with financial frictions," Journal of Economic Dynamics and Control, Elsevier, vol. 37(1), pages 32-51.
  13. Gregory DE WALQUE & Olivier PIERRARD & Abdelaziz ROUABAH, 2009. "Financial (in)stability, supervision and liquidity injections : a dynamic general equilibrium approach," Discussion Papers (IRES - Institut de Recherches Economiques et Sociales) 2009006, Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES).
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