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Inventories and Optimal Monetary Policy

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Author Info

  • Thomas A. Lubik

    () (Federal Reserve Bank, Richmond)

  • Wing Leong Teo

    () (Department of Economics, National Taiwan University)

Abstract

We introduce inventories into a standard New Keynesian Dynamic Stochastic General Equilibrium (DSGE) model to study the effect on the design of optimal monetary policy. The possibility of inventory investment changes the transmission mechanism in the model by decoupling production from final consumption. This allows for a higher degree of consumption smoothing since firms can add excess production to their inventory holdings. We consider both Ramsey optimal monetary policy and a monetary policy that maximizes consumer welfare over a set of simple interest rate feedback rules. We find that in contrast to a model without inventories, Ramsey-optimal monetary policy in a model with inventories deviates from complete inflation stabilization. In the standard model, nominal price rigidity is a deadweight loss on the economy, which an optimizing policymaker attempts to remove. With inventories, a planner can reduce consumption volatility and raise welfare by accumulating inventories and letting prices change as an equilibrating mechanism. We find also find that the application of simple rules comes very close to replicating Ramsey optimal outcomes.

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File URL: http://www.economics.adelaide.edu.au/research/papers/doc/wp2009-33.pdf
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Bibliographic Info

Paper provided by University of Adelaide, School of Economics in its series School of Economics Working Papers with number 2009-33.

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Length: 33 pages
Date of creation: 2009
Date of revision:
Handle: RePEc:adl:wpaper:2009-33

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Postal: Adelaide SA 5005
Phone: (618) 8303 5540
Web page: http://www.economics.adelaide.edu.au/
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Keywords: Ramsey policy; New Keynesian model;

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References

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  1. Stephanie Schmitt-Grohé & Martín Uribe, 2007. "Optimal simple and implementable monetary and fiscal rules," Working Paper 2007-24, Federal Reserve Bank of Atlanta.
  2. Aubhik Khan & Robert G. King & Alexander L. Wolman, 2002. "Optimal Monetary Policy," NBER Working Papers 9402, National Bureau of Economic Research, Inc.
  3. Yongseung Jung & Tack Yun, 2005. "Monetary policy shocks, inventory dynamics, and price-setting behavior," Working Paper Series 2006-02, Federal Reserve Bank of San Francisco.
  4. Bils, M. & Kahn, J.A., 1996. "What Inventory Behavior Tells Us About Business Cycles," RCER Working Papers 428, University of Rochester - Center for Economic Research (RCER).
  5. Andrew T. Levin & Alexei Onatski & John C. Williams & Noah Williams, 2005. "Monetary policy under uncertainty in micro-founded macroeconometric models," Working Papers in Applied Economic Theory 2005-15, Federal Reserve Bank of San Francisco.
  6. Fisher, J.D.M. & Hornstein, A., 1995. "(S,s)Inventory Policies in General Equilibrium," UWO Department of Economics Working Papers 9514, University of Western Ontario, Department of Economics.
  7. Aubhik Khan & Julie K. Thomas, 2003. "Inventories and the business cycle: an equilibrium analysis of (S,s) policies," Staff Report 329, Federal Reserve Bank of Minneapolis.
  8. Louis J. Maccini & Bartholomew J. Moore & Huntley Schaller, 2004. "The Interest Rate, Learning, and Inventory Investment," American Economic Review, American Economic Association, vol. 94(5), pages 1303-1327, December.
  9. Martin Boileau & Marc-Andre Letendre, 2011. "Inventories, sticky prices, and the persistence of output and inflation," Applied Economics, Taylor and Francis Journals, vol. 43(10), pages 1161-1174.
  10. Ramey, Valerie A. & West, Kenneth D., 1999. "Inventories," Handbook of Macroeconomics, in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 13, pages 863-923 Elsevier.
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  17. Stephanie Schmitt-Grohe & Martin Uribe, 2002. "Solving Dynamic General Equilibrium Models Using a Second-Order Approximation to the Policy Function," NBER Technical Working Papers 0282, National Bureau of Economic Research, Inc.
  18. David Lopez-Salido & Andrew T. Levin, 2004. "Optimal Monetary Policy with Endogenous Capital Accumulation," 2004 Meeting Papers 826, Society for Economic Dynamics.
  19. Chang, Yongsung & Hornstein, Andreas & Sarte, Pierre-Daniel, 2009. "On the employment effects of productivity shocks: The role of inventories, demand elasticity, and sticky prices," Journal of Monetary Economics, Elsevier, vol. 56(3), pages 328-343, April.
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Cited by:
  1. Teo, Wing Leong, 2011. "Inventories and optimal monetary policy in a small open economy," Journal of International Money and Finance, Elsevier, vol. 30(8), pages 1719-1748.
  2. Marcel Foerster, 2011. "Bayesian Estimation of a DSGE Model with Inventories," MAGKS Papers on Economics 201123, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).

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