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Obsolescence of Durable Goods and Optimal Consumption

Author

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  • Ennio Stacchetti
  • Dmitriy Stolyarov
Abstract
We study a model with a durable good subject to abrupt, periodic obsolescence, and characterize the optimal purchasing policy. Consumers optimally synchronize new purchases with the arrival of new durable models. Hence, some agents use a "flexible" optimal replacement rule that switches between two adjacent replacement frequencies at irregular intervals. These agents react to wealth shocks by changing the timing of future purchases. The model has distinct comparative statics on obsolescence and durability and can explain how durables with high depreciation rates may have more volatile expenditure. The model also predicts how demand fluctuations respond to a change in product variety. These predictions match the observed changes in volatility of the US auto sales after the introduction of smaller foreign cars in the 1970s

Suggested Citation

  • Ennio Stacchetti & Dmitriy Stolyarov, 2004. "Obsolescence of Durable Goods and Optimal Consumption," Econometric Society 2004 North American Summer Meetings 120, Econometric Society.
    • Handle: RePEc:ecm:nasm04:120
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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.
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    7. Caballero, Ricardo J, 1993. "Durable Goods: An Explanation for Their Slow Adjustment," Journal of Political Economy, University of Chicago Press, vol. 101(2), pages 351-384, April.
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    9. Jerome Adda & Russell Cooper, 2000. "The Dynamics of Car Sales: A Discrete Choice Approach," NBER Working Papers 7785, National Bureau of Economic Research, Inc.
    10. Eberly, Janice C, 1994. "Adjustment of Consumers' Durables Stocks: Evidence from Automobile Purchases," Journal of Political Economy, University of Chicago Press, vol. 102(3), pages 403-436, June.
    11. Andrew Caplin & John Leahy, 1999. "Durable Goods Cycles," NBER Working Papers 6987, National Bureau of Economic Research, Inc.
    12. repec:fth:jonhop:386 is not listed on IDEAS
    13. Orazio P. Attanasio, 2000. "Consumer Durables and Inertial Behaviour: Estimation and Aggregation of (S, s) Rules for Automobile Purchases," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 67(4), pages 667-696.
    14. Mankiw, N. Gregory, 1982. "Hall's consumption hypothesis and durable goods," Journal of Monetary Economics, Elsevier, vol. 10(3), pages 417-425.
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    Cited by:

    1. Jerome Adda & Russell Cooper, 2000. "The Dynamics of Car Sales: A Discrete Choice Approach," NBER Working Papers 7785, National Bureau of Economic Research, Inc.
    2. Yuriy Gorodnichenko & Klara Sabirianova Peter & Dmitriy Stolyarov, 2010. "Inequality and Volatility Moderation in Russia: Evidence from Micro-Level Panel Data on Consumption and Income," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 13(1), pages 209-237, January.
    3. Cagri Saglam & Vladimir M. Veliov, 2008. "Role of Endogenous Vintage Specific Depreciation in the Optimal Behavior of Firms," International Journal of Economic Theory, The International Society for Economic Theory, vol. 4(3), pages 381-410, September.

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    More about this item

    Keywords

    durable goods; obsolescence; aggregate consumption fluctuations;
    All these keywords.

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • O33 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes

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