Inventory Shocks and the Great Moderation

James Morley and Aarti Singh

Journal of Money, Credit and Banking, 2016, vol. 48, issue 4, 699-728

Abstract: Why did the volatility of U.S. real GDP decline by more than the volatility of final sales with the Great Moderation in the mid‐1980s? One explanation is that firms shifted their inventory behavior toward a greater emphasis on production smoothing. We investigate the role of inventories in the Great Moderation by estimating an unobserved components model that identifies inventory and sales shocks and their propagation in the aggregate data. Our estimates provide no support for increased production smoothing. Instead, smaller transitory inventory shocks are responsible for the excess volatility reduction in output compared to sales. These shocks behave like informational errors related to production that must be set in advance and their reduction also helps explain the changed forecasting role of inventories since the mid‐1980s. Our findings provide an optimistic prognosis for a continuation of the Great Moderation, despite the dramatic movements in output during the recent economic crisis.

Date: 2016
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Citations: View citations in EconPapers (7)

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https://doi.org/10.1111/jmcb.12315

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Working Paper: Inventory Shocks and the Great Moderation (2015)
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Persistent link: https://EconPapers.repec.org/RePEc:wly:jmoncb:v:48:y:2016:i:4:p:699-728

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