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Input cost, capacity utilization and substitution in the short run

Ana Martín Marcos, Jordi Jaumandreu () and Miguel A. Delgado

DES - Working Papers. Statistics and Econometrics. WS from Universidad Carlos III de Madrid. Departamento de Estadística

Abstract: This article studies the behavior of input cost shares in an environment where labor is costly to adjust, materials can be adjusted at no cost and capital is fixed. A model relating cost shares with relative prices and adjustment costs is proposed, allowing joint estimation of the elasticity of substitution and the adjustment cost function, which is an unknown function of the utilization capacity. Based on a panel of more than 700 manufacturing firms, we find evidence of strong input share variations according to the degree of capacity utilization. The estimated shapes of adjustment costs curves of labor are in agreement with our theoretical model, and we obtain sensible elasticities of substitution estimates. Based on such estimates, we find evidence of a negative (positive) bias in downturns (recoveries) in conventional productivity growth measures.

Keywords: Input; costs; Capacity; utilization; Substitution; in; the; short; run; Partially; linear; model; Nonparametric; regression (search for similar items in EconPapers)
Date: 1998-05
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Journal Article: Input cost, capacity utilization and substitution in the short run (1999) Downloads
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