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Optimal monetary policy in a new Keynesian model with habits in consumption

  • Campbell Leith
  • Ioana Moldovan
  • Raffaele Rossi

While consumption habits have been utilised as a means of generating a humpshaped output response to monetary policy shocks in sticky-price New Keynesian economies, there is relatively little analysis of the impact of habits (particularly, external habits) on optimal policy. In this paper we consider the implications of external habits for optimal monetary policy, when those habits either exist at the level of the aggregate basket of consumption goods (‘superficial’ habits) or at the level of individual goods (‘deep’ habits: see Ravn, Schmitt-Grohe, and Uribe (2006)). External habits generate an additional distortion in the economy, which implies that the flex-price equilibrium will no longer be efficient and that policy faces interesting new trade-offs and potential stabilisation biases. Furthermore, the endogenous mark-up behaviour, which emerges when habits are deep, can also significantly affect the optimal policy response to shocks, as well as dramatically affecting the stabilising properties of standard simple rules.

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Paper provided by Business School - Economics, University of Glasgow in its series Working Papers with number 2008_30.

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Date of creation: Nov 2008
Date of revision: Dec 2008
Handle: RePEc:gla:glaewp:2008_30
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  1. Campbell Leith & Ioana Moldovan & Raffaele Rossi, 2012. "Online Appendix to "Optimal Monetary Policy in a New Keynesian Model with Habits in Consumption"," Technical Appendices 09-154, Review of Economic Dynamics.
  2. Amato, Jeffery D. & Laubach, Thomas, 2004. "Implications of habit formation for optimal monetary policy," Journal of Monetary Economics, Elsevier, vol. 51(2), pages 305-325, March.
  3. Frank Smets & Rafael Wouters, 2007. "Shocks and Frictions in US Business Cycles: A Bayesian DSGE Approach," American Economic Review, American Economic Association, vol. 97(3), pages 586-606, June.
  4. Kozicki, Sharon & Tinsley, P. A., 2002. "Dynamic specifications in optimizing trend-deviation macro models," Journal of Economic Dynamics and Control, Elsevier, vol. 26(9-10), pages 1585-1611, August.
  5. Rotemberg, Julio J, 1982. "Sticky Prices in the United States," Journal of Political Economy, University of Chicago Press, vol. 90(6), pages 1187-1211, December.
  6. Leith, Campbell & Moldovan, Ioana & Rossi, Raffaele, 2008. "Optimal Monetary Policy in a New Keynesian Model with Habits in Consumption," SIRE Discussion Papers 2008-55, Scottish Institute for Research in Economics (SIRE).
  7. Morten Ravn & Stephanie Schmitt-Grohe & Martin Uribe, 2004. "Deep Habits," NBER Working Papers 10261, National Bureau of Economic Research, Inc.
  8. Schmitt-Grohé, Stephanie & Uribe, Martín, 2004. "Optimal Simple and Implementable Monetary and Fiscal Rules," CEPR Discussion Papers 4334, C.E.P.R. Discussion Papers.
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  10. Campbell leith & Jim Malley, 2002. "Estimated General Equilibrium Models for the Evaluation of Monetary Policy in the US and Europe," Working Papers 2001_16, Business School - Economics, University of Glasgow.
  11. Ravn, Morten O & Schmitt-Grohé, Stephanie & Uribe, Martín & Uusküla, Lenno, 2009. "Deep Habits and the Dynamic Effects of Monetary Policy Shocks," CEPR Discussion Papers 7128, C.E.P.R. Discussion Papers.
  12. Lawrence J. Christiano & Martin Eichenbaum & Charles Evans, 2001. "Nominal rigidities and the dynamic effects of a shock to monetary policy," Proceedings, Federal Reserve Bank of San Francisco, issue Jun.
  13. repec:mtl:montec:08-2002 is not listed on IDEAS
  14. Frank Smets & Raf Wouters, 2002. "An estimated dynamic stochastic general equilibrium model of the euro area," Working Paper Research 35, National Bank of Belgium.
  15. Jeffrey C. Fuhrer, 2000. "Habit Formation in Consumption and Its Implications for Monetary-Policy Models," American Economic Review, American Economic Association, vol. 90(3), pages 367-390, June.
  16. Levine, Paul & Pearlman, Joseph G. & Pierse, Richard, 2007. "Linear-quadratic approximation, external habit and targeting rules," Working Paper Series 0759, European Central Bank.
  17. Blanchard, Olivier Jean & Kahn, Charles M, 1980. "The Solution of Linear Difference Models under Rational Expectations," Econometrica, Econometric Society, vol. 48(5), pages 1305-11, July.
  18. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
  19. Michael Woodford, 2001. "The Taylor Rule and Optimal Monetary Policy," American Economic Review, American Economic Association, vol. 91(2), pages 232-237, May.
  20. Harald Uhlig & Lars Ljungqvist, 2000. "Tax Policy and Aggregate Demand Management under Catching Up with the Joneses," American Economic Review, American Economic Association, vol. 90(3), pages 356-366, June.
  21. Bouakez, Hafedh & Cardia, Emanuela & Ruge-Murcia, Francisco J., 2005. "Habit formation and the persistence of monetary shocks," Journal of Monetary Economics, Elsevier, vol. 52(6), pages 1073-1088, September.
  22. Zubairy, Sarah, 2010. "Deep Habits, Nominal Rigidities and Interest Rate Rules," MPRA Paper 26053, University Library of Munich, Germany.
  23. repec:cup:cbooks:9780521104609 is not listed on IDEAS
  24. Julio J. Rotemberg & Michael Woodford, 1999. "Interest Rate Rules in an Estimated Sticky Price Model," NBER Chapters, in: Monetary Policy Rules, pages 57-126 National Bureau of Economic Research, Inc.
  25. Tatiana Kirsanova & Campbell Leith & Simon Wren-Lewis, 2006. "Should Central Banks Target Consumer Prices or the Exchange Rate?," Economic Journal, Royal Economic Society, vol. 116(512), pages F208-F231, 06.
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