Please use this identifier to cite or link to this item: http://hdl.handle.net/2123/7093

Title: Inventory Mistakes and the Great Moderation
Authors: Singh, Aarti
Morley, James
Discipline of Economics
Keywords: Great Moderation
production smoothing
inventory mistakes
unobserved components model
inventories
Issue Date: Nov-2009
Publisher: Discipline of Economics
Series/Report no.: 2009-04
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 possible explanation is that firms shifted their inventory behaviour towards 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 findings suggest little evidence of increased production smoothing. Instead, a reduction in inventory mistakes explains the excess volatility reduction in output relative to sales. The inventory mistakes are informational errors related to production that must be set in advance and their reduction also helps to explain the changed forecasting role of inventories since the mid-1980s. Our findings provide an optimistic prognosis for the continuation of the Great Moderation despite the dramatic movements in output during the recent economic crisis.
URI: http://hdl.handle.net/2123/7093
Department/Unit/Centre: Discipline of Economics
Appears in Collections:Working Papers - Economics

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