NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Dynamic Factor Demands Under Rational Expectations

Robert S. Pindyck, Julio J. Rotemberg

NBER Working Paper No. 1015
Issued in November 1982
NBER Program(s):   EFG

This paper presents a dynamic model of the industrial demands for structures, equipment, and blue- and white-collar labor. Our approach is consistent with producers holding rational expectations and optimizing dynamically in the presence of adjustment costs, yet it permits generality of functional form regarding the technology. We represent the technology by atranslog input requirement function that specifies the amount of blue-collar labor (a flexible factor) the firm must hire to produce a level of output given its quantities of three quasi-fixed factors that are subject to adjustment costs: non-production (white-collar) workers, equipment, and structures.A complete description of the production structure is obtained by simultaneously estimating the input requirement function and three stochastic Euler equations.We apply an instrumental variable technique to estimate these equations using aggregate data for U.S. manufacturing. We find that as a fraction of total expenditures, adjustment costs are small in total hut large on the margin,and that they differ considerably across quasi-fixed factors. We also present short- and long-run elasticities of factor demands.

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Document Object Identifier (DOI): 10.3386/w1015

Published: Pindyck, Robert S. and Julio J. Rotemberg. "Dynamic Factor Demands Under Rational Expectations." The Scandinavian Journal of Economics, July 1983. citation courtesy of

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