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Time-varying volatility, precautionary saving and monetary policy

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  • Hatcher, Michael

    ()
    (Cardiff University)

Abstract

This paper analyses the conduct of monetary policy in an environment where households’ desire to amass precautionary savings is influenced by fluctuations in the volatilities of disturbances that hit the economy. It uses a simple New Keynesian model with external habit formation that is augmented with demand and supply disturbances whose volatilities vary over time. If volatility fluctuations are ignored by policy, interest rates are set at a suboptimal level. The extent of ‘policy bias’ is relatively small but of greater importance the higher the degree of habit formation. The reason is that habit-forming preferences raise risk aversion, increasing the importance of the precautionary savings channel through which volatility fluctuations impact upon inflation and output.

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Bibliographic Info

Paper provided by Bank of England in its series Bank of England working papers with number 440.

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Length: 38 pages
Date of creation: 31 Oct 2011
Date of revision:
Handle: RePEc:boe:boeewp:0440

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Keywords: Time-varying volatility; precautionary saving; monetary policy; DSGE models.;

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  1. Andrew Benito, 2004. "Does job insecurity affect household consumption?," Bank of England working papers 220, Bank of England.
  2. Sydney C. Ludvigson & Alexander Michaelides, 2001. "Does Buffer-Stock Saving Explain the Smoothness and Excess Sensitivity of Consumption?," American Economic Review, American Economic Association, vol. 91(3), pages 631-647, June.
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  4. Gianluca Benigno & Pierpaolo Benigno & Salvatore Nisticò, 2010. "Second-Order Approximation of Dynamic Models with Time-Varying Risk," EIEF Working Papers Series 1021, Einaudi Institute for Economics and Finance (EIEF), revised Dec 2010.
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  6. Juan Rubio-Ramirez & Jesus Fernandez-Villaverde & Pablo A. Guerron-Quintana, 2010. "Fortune or Virtue: Time Variant Volatilities versus Parameter Drifting in U.S. Data," 2010 Meeting Papers 270, Society for Economic Dynamics.
  7. Juillard, Michel & Karam, Philippe & Laxton, Douglas & Pesenti, Paolo, 2006. "Welfare-based monetary policy rules in an estimated DSGE model of the US economy," Working Paper Series 0613, European Central Bank.
  8. Giorgio Primiceri & Alejandro Justiniano, 2006. "The Time Varying Volatility of Macroeconomic Fluctuations," 2006 Meeting Papers 353, Society for Economic Dynamics.
  9. Bianca De Paoli & Pawel Zabczyk, 2012. "Cyclical Risk Aversion, Precautionary Saving and Monetary Policy," CEP Discussion Papers dp1132, Centre for Economic Performance, LSE.
  10. De Paoli, Bianca & Zabczyk, Pawel, 2009. "Why do risk premia vary over time? A theoretical investigation under habit formation," Bank of England working papers 361, Bank of England.
  11. Nicholas Bloom, 2009. "The Impact of Uncertainty Shocks," Econometrica, Econometric Society, vol. 77(3), pages 623-685, 05.
  12. Glenn D. Rudebusch & Eric T. Swanson, 2008. "Examining the bond premium puzzle with a DSGE model," Working Paper Series 2007-25, Federal Reserve Bank of San Francisco.
  13. Martin M. Andreasen, 2010. "How Non-Gaussian Shocks Affect Risk Premia in Non-Linear DSGE Models," CREATES Research Papers 2010-63, School of Economics and Management, University of Aarhus.
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