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Inventories and Real Rigidities in New Keynesian Business Cycle Models

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Kryvtsov and Midrigan (2008) study the behavior of inventories in an economy with menu costs, fixed ordering costs and the possibility of stock-outs. This paper extends their analysis to a richer setting that is capable of more closely accounting for the dynamics of the US business cycle. We find that the original conclusion survives in this setting: namely, the model requires an elasticity of real marginal cost to output approximately equal to the inverse intertemporal elasticity of substitution in consumption in order to account for the countercyclicality of the aggregate inventory-to-sales ratio in the data.

Published In:

Journal of the Japanese and International Economies (0889-1583)
June 2010. Vol. 24, Iss. 2, pp. 259-281
Special Conference Issue - Sticky Prices and Inflation Dynamics, TRIO Conference