Inventory accelerator in general equilibrium
AbstractWe develop a general-equilibrium model of inventories with explicit micro-foundations by embedding the production-cost-smoothing motive (e.g., Eichenbaum, AER 1989) into an otherwise standard DSGE model. We show that firms facing idiosyncratic cost shocks have incentives to bunch production and smooth sales by carrying inventories. The optimal inventory target of a firm is derived explicitly. The model is broadly consistent with many of the observed stylized facts of aggregate inventory fluctuations, such as the procyclical inventory investment and the countercyclical inventory-sales ratio. In addition, the model yields novel predictions for the role of inventories in macroeconomic stability: Inventories may not only greatly amplify but also propagate the business cycle. That is, the incentive to accumulate inventories under the cost-smoothing motive can give rise to hump-shaped output dynamics and significantly higher volatility of GDP. Such predictions are in sharp contrast to the implications of the recent general-equilibrium inventory literature (e.g., Khan and Thomas, 2007; and Wen, 2008), which shows that inventory investment induced by traditional mechanisms (e.g., the stockout-avoidance motive and the (S,s) rule) does not increase the variance of aggregate output.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by Federal Reserve Bank of St. Louis in its series Working Papers with number 2009-010.
Date of creation: 2009
Date of revision:
This paper has been announced in the following NEP Reports:
- NEP-ALL-2009-08-02 (All new papers)
- NEP-BEC-2009-08-02 (Business Economics)
- NEP-DGE-2009-08-02 (Dynamic General Equilibrium)
- NEP-MAC-2009-08-02 (Macroeconomics)
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Yi Wen, 2011.
"Input and output inventory dynamics,"
2011-008, Federal Reserve Bank of St. Louis.
- Louis J. Maccini & Bartholomew Moore & Huntley Schaller, 2013. "Inventory Behavior with Permanent Sales Shocks," Fordham Economics Discussion Paper Series dp2013-03, Fordham University, Department of Economics.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Xiao Xiaohong) The email address of this maintainer does not seem to be valid anymore. Please ask Xiao Xiaohong to update the entry or send us the correct address.
If references are entirely missing, you can add them using this form.