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Understanding the Inventory Cycle

Author

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  • Wen, Yi

    (Cornell U)

Abstract
Why is there inventory investment when its expected rate of return is strictly dominated by that of fixed-capital investment? Why is inventory investment procyclical at business-cycle frequencies but countercyclical at the very high frequencies (e.g., 2-3 quarters per cycle)? Why does the variance of production exceed the variance of sales at the business-cycle frequencies but not so at the high frequencies? Why is inventory investment so volatile relative to GDP at the high frequencies but not so at the business cycle frequencies? Explaining these seemingly paradoxical features of inventory behavior is of great importance because for many years economists have speculated that understanding inventory fluctuations may provide the key to understanding the business cycle. This paper provides a general equilibrium analysis on inventory cycles and their relations to the business cycle. I show that in an environment where production and fixed-capital investment cannot adjust instantaneously to respond to consumption demand shocks, firms opt to hold inventories in the short run so as to avoid stockout and to smooth production against demand uncertainty. These incentives for holding inventories in the short run have different effects on inventory cycles across different cyclical frequencies. At the high frequencies inventory fluctuations are dominated by the production-smoothing motive and at the business-cycle frequencies inventory fluctuations are dominated by the stockout-avoidance motive. Consequently, inventory investment appears to be countercyclical and volatile at the high frequencies but procyclical and relatively smooth at the business-cycle frequencies, production appears to be less volatile than sales at the high frequencies but more volatile than sales at the business-cycle frequencies. I also show that the inventory cycle and the business cycle are intimately related by sharing a common source of uncertainty--consumption demand, which leads to the phenomena that consumption Granger causes output and fixed investment, that consumption comoves with output and fixed investment, and that consumption appears to be smooth relative to output and fixed investment.

Suggested Citation

  • Wen, Yi, 2002. "Understanding the Inventory Cycle," Working Papers 02-04, Cornell University, Center for Analytic Economics.
    • Handle: RePEc:ecl:corcae:02-04
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    References listed on IDEAS

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    1. Ricardo J. Caballero & Eduardo M. R. A. Engel, 1999. "Explaining Investment Dynamics in U.S. Manufacturing: A Generalized (S,s) Approach," Econometrica, Econometric Society, vol. 67(4), pages 783-826, July.
    2. Alan S. Blinder, 1986. "Can the Production Smoothing Model of Inventory Behavior be Saved?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 101(3), pages 431-453.
    3. James A. Kahn & Mark Bils, 2000. "What Inventory Behavior Tells Us about Business Cycles," American Economic Review, American Economic Association, vol. 90(3), pages 458-481, June.
    4. Jonas D. M. Fisher & Andreas Hornstein, 2000. "(S, s) Inventory Policies in General Equilibrium," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 67(1), pages 117-145.
    5. Humphreys, Brad R. & Maccini, Louis J. & Schuh, Scott, 2001. "Input and output inventories," Journal of Monetary Economics, Elsevier, vol. 47(2), pages 347-375, April.
    6. 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.
    7. Brown, Ward & Haegler, Urs, 2004. "Financing constraints and inventories," European Economic Review, Elsevier, vol. 48(5), pages 1091-1123, October.
    8. West, Kenneth D, 1986. "A Variance Bounds Test of the Linear Quadratic Inventory Model," Journal of Political Economy, University of Chicago Press, vol. 94(2), pages 374-401, April.
    9. Blanchard, Olivier J, 1983. "The Production and Inventory Behavior of the American Automobile Industry," Journal of Political Economy, University of Chicago Press, vol. 91(3), pages 365-400, June.
    10. James A. Kahn, 1992. "Why is Production More Volatile than Sales? Theory and Evidence on the Stockout-Avoidance Motive for Inventory-Holding," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 107(2), pages 481-510.
    11. Andrew B. Abel, 1985. "Inventories, Stock-Outs, and Production Smoothing," NBER Working Papers 1563, National Bureau of Economic Research, Inc.
    12. Wen, Yi, 2004. "Durable Goods Inventories and the Volatility of Production: Explaining the Less Volatile U.S. Economy," Working Papers 04-01, Cornell University, Center for Analytic Economics.
    13. Wen, Yi, 2005. "Understanding the inventory cycle," Journal of Monetary Economics, Elsevier, vol. 52(8), pages 1533-1555, November.
    14. 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 853-864, September.
    15. Christiano, Lawrence J., 1988. "Why does inventory investment fluctuate so much?," Journal of Monetary Economics, Elsevier, vol. 21(2-3), pages 247-280.
    16. Wen, Yi, 2003. "The Power of Demand: A General Equilibrium Analysis of Multi-Stage-Fabrication Economy with Inventories," Working Papers 03-13r, Cornell University, Center for Analytic Economics.
    17. Maccini, Louis J & Zabel, Edward, 1996. "Serial Correlation in Demand, Backlogging and Production Volatility," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 37(2), pages 423-452, May.
    18. Kahn, James A, 1987. "Inventories and the Volatility of Production," American Economic Review, American Economic Association, vol. 77(4), pages 667-679, September.
    19. Ramey, Valerie A, 1991. "Nonconvex Costs and the Behavior of Inventories," Journal of Political Economy, University of Chicago Press, vol. 99(2), pages 306-334, April.
    20. 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.
    21. Alan S. Blinder, 1981. "Retail Inventory Behavior and Business Fluctuations," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 12(2), pages 443-520.
    22. Wen, Yi, 2002. "Fickle Consumers versus Random Technology: Explaining Domestic and International Comovements," Working Papers 02-01, Cornell University, Center for Analytic Economics.
    23. Andreas Hornstein, 1998. "Inventory investment and the business cycle," Economic Quarterly, Federal Reserve Bank of Richmond, issue Spr, pages 49-71.
    24. Wen Yi, 2004. "What Does It Take to Explain Procyclical Productivity?," The B.E. Journal of Macroeconomics, De Gruyter, vol. 4(1), pages 1-40, June.
    25. Andrew B. Abel, 1985. "Inventories, Stock-Outs and Production Smoothing," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 52(2), pages 283-293.
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    More about this item

    JEL classification:

    • E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical
    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles

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