Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/72031
Authors: 
Humphreys, Brad R.
Maccini, Louis J.
Schuh, Scott
Year of Publication: 
2000
Series/Report no.: 
Working Papers, The Johns Hopkins University, Department of Economics 426
Abstract: 
This paper presents a new stage-of-fabrication inventory model with ordering usage and stocking of input materials that distinguishes between gross production and value added It extends the traditional linear-quadratic model of output (finished goods) inventories by adding joint determination of input inventories which largely have been ignored Empirically input inventories are more important than output inventories especially in business cycle fluctuations Maximum likelihood estimation of the decision rules yields relatively strong support for the model using data for nondurable and durable good industries The value added specification outperforms gross production because adjustment costs on the change in materials usage are critical to fitting the data.
Subjects: 
Inventories
raw materials
work-in-process
nished goods
stage-of-fabrication
gross production
value added
linear-quadratic
JEL: 
E22
E23
Document Type: 
Working Paper

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