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Working Paper
Input and output inventories
This paper builds and estimates a new model of firm behavior that includes decisions to order, use, and stock input materials in a stage-of-fabrication environment with either gross production or value added technology. The model extends the traditional linear-quadratic model of output (finished goods) inventories by incorporating delivery and usage of input materials plus input inventory investment - features which largely have been ignored in the literature. Stylized facts indicate that input inventories are empirically more important than output inventories, especially in business cycle ...