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When Do Inventories Destabilize the Economy? ---A Tractable Approach to (S,s) Policies

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  • Zhiwei Xu

    (Hong Kong University of Science and Technology)

  • Yi Wen
  • pengfei Wang

    (Hong Kong University of Science and Technology)

Abstract

This paper provides a method to analytically (or tractably) solve (S,s) inventory policies in general equilibrium. This solution method can handle large state space with many state variables, such as multiple capital stocks, lagged aggregate investment and consumption, and other predetermined aggregate variables, thus greatly reducing the computation costs of DSGE models with inventories. We use the Khan-Thomas (2007) model to illustrate how standard log-linearization methods can be used to solve various versions of this inventory model and generate impulse response functions. We find that the conventional wisdom that inventory investment destabilizes the economy can still hold in general-equilibrium if firms face investment adjustment costs or can vary the capacity utilization rate.

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Bibliographic Info

Paper provided by Society for Economic Dynamics in its series 2012 Meeting Papers with number 288.

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Date of creation: 2012
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Handle: RePEc:red:sed012:288

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  1. Andreas Hornstein, 1998. "Inventory investment and the business cycle," Economic Quarterly, Federal Reserve Bank of Richmond, issue Spr, pages 49-71.
  2. Oleksiy Kryvtsov & Virgiliu Midrigan, 2009. "Inventories, Markups, and Real Rigidities in Menu Cost Models," NBER Working Papers 14651, National Bureau of Economic Research, Inc.
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  8. Eichenbaum, Martin, 1989. "Some Empirical Evidence on the Production Level and Production Cost Smoothing Models of Inventory Investment," American Economic Review, American Economic Association, vol. 79(4), pages 853-64, September.
  9. Jonas D.M. Fisher & Andreas Hornstein, 1996. "(S, s) inventory policies in general equilibrium," Working Paper Series, Macroeconomic Issues WP-96-24, Federal Reserve Bank of Chicago.
  10. George Alessandria & Joseph Kaboski & Virgiliu Midrigan, 2008. "Inventories, lumpy trade, and large devaluations," Working Paper Series WP-08-07, Federal Reserve Bank of Chicago.
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  17. Yi Wen, 2011. "Input and output inventory dynamics," Working Papers 2011-008, Federal Reserve Bank of St. Louis.
  18. Caplin, Andrew S, 1985. "The Variability of Aggregate Demand with (S, s) Inventory Policies," Econometrica, Econometric Society, vol. 53(6), pages 1395-1409, November.
  19. Daniele Coen-Pirani, 2004. "Markups, Aggregation, and Inventory Adjustment," American Economic Review, American Economic Association, vol. 94(5), pages 1328-1353, December.
  20. Kahn, James A, 1987. "Inventories and the Volatility of Production," American Economic Review, American Economic Association, vol. 77(4), pages 667-79, September.
  21. Martin Feldstein & Alan Auerbach, 1976. "Inventory Behavior in Durable-Goods Manufacturing: The Target-Adjustment Model," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 7(2), pages 351-408.
  22. Kahn, James A, 1992. "Why Is Production More Volatile Than Sales? Theory and Evidence on the Stockout-Avoidance Motive for Inventory-Holding," The Quarterly Journal of Economics, MIT Press, vol. 107(2), pages 481-510, May.
  23. Kydland, Finn E & Prescott, Edward C, 1982. "Time to Build and Aggregate Fluctuations," Econometrica, Econometric Society, vol. 50(6), pages 1345-70, November.
  24. Alan S. Blinder & Louis J. Maccini, 1991. "Taking Stock: A Critical Assessment of Recent Research on Inventories," Journal of Economic Perspectives, American Economic Association, vol. 5(1), pages 73-96, Winter.
  25. Greenwood, Jeremy & Hercowitz, Zvi & Huffman, Gregory W, 1988. "Investment, Capacity Utilization, and the Real Business Cycle," American Economic Review, American Economic Association, vol. 78(3), pages 402-17, June.
  26. Michael Dotsey & Robert G. King & Alexander L. Wolman, 1999. "State-Dependent Pricing And The General Equilibrium Dynamics Of Money And Output," The Quarterly Journal of Economics, MIT Press, vol. 114(2), pages 655-690, May.
  27. Aubhik Khan & Julia K. Thomas, 2007. "Inventories and the Business Cycle: An Equilibrium Analysis of ( S, s ) Policies," American Economic Review, American Economic Association, vol. 97(4), pages 1165-1188, September.
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