Substitution and complementarity between capital, skilled and less skilled workers: an analysis at the firm level in the French manufacturing industry
AbstractThis paper investigates the substitution possibilities in the production function between capital and two labour inputs, skilled and unskilled workers. We estimate a very general system of factor demand at the firm level, using original panel data obtained by merging three different sources. We take into account the existence of adjustment costs as well as the possibility that productivity shocks are persistent, by estimating autoregressive factor demand equations. In order to correct for the endogeneity of regressors with respect to unobserved heterogeneity as well as productivity shocks, we use the Generalized Method of Moments to estimate factor demand equations separately. We then correct for simultaneity biases across equations to estimate the full system. Long run coefficients are computed from the estimated autoregressive equation. Asymptotic Least Squares finally allow us to test the theoretical restrictions imposed on these coefficients by the model. We find that the elasticity of substitution between skill groups is unitary. Capital is also found to be easily substituted to unskilled labour, but weakly if at all to skilled workers.
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Bibliographic InfoPaper provided by Institut National de la Statistique et des Etudes Economiques, DESE in its series Documents de Travail de la DESE - Working Papers of the DESE with number g2001-13.
Date of creation: 2001
Date of revision:
labour demand; elasticity of substitution; generalized method of moments;
Find related papers by JEL classification:
- C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
- J23 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Demand
- J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
- L60 - Industrial Organization - - Industry Studies: Manufacturing - - - General
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- Óscar Bajo Rubio & Antonio Gómez Gómez-Plana, 2001.
"Reducing social contributions on unskilled labour as a way of fighting unemployment: An empirical evaluation for the case of Spain,"
Documentos de Trabajo - Lan Gaiak Departamento de EconomÃa - Universidad PÃºblica de Navarra
0102, Departamento de Economía - Universidad Pública de Navarra.
- Oscar Bajo-Rubio & Antonio G. Gómez-Plana, 2004. "Reducing Social Contributions for Unskilled Labor as a Way of Fighting Unemployment: An Empirical Evaluation for the Case of Spain," FinanzArchiv: Public Finance Analysis, Mohr Siebeck, Tübingen, vol. 60(2), pages 160-, August.
- Oscar Bajo-Rubio & Antonio G. Gómez-Plana, . "Reducing social contributions on unskilled labour as a way of fighting unemployment: An empirical evaluation for the case of Spain," Studies on the Spanish Economy 107, FEDEA.
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