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Une application de la méthode de l'équivalent-travail : l'évolution du système productif français entre 1971-1975

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  • Alain Lechuga

Abstract

[eng] An application of the « equivalent-travail « method : the evolution of the French productive system between 1971 and 1975. . The « equivalent-travail » method is an attempt to value the direct and indirect labor content of the output of commodities by using input-output techniques. Part I gives a brief account of the difficulties of implementing the method and of the assumptions required to obtain an operational model.. Part II presents some thoughts suggested by this valuation method. First, we work out a satisfactory statistical relation between the variation of the productivity of the total labor embodied in a branch production (i. e. the direct labor and the embodied in its intermediate inputs) and the price evolution of the branch output. The productivity-inflation relation is improved when one considerg the pro­ductivity of the indirect labor.. Secondly, we observe over the entire period a continuous deceleration of labor productivity gains, with an absolute lowering in 1975. The évolution is different according to sectors and branches these differences are explained : (i) by the direct labor productivity ; (n) by the unequal opportunity, for each activity to take advantage of transfers of productivity gains (via the indirect labor used). [fre] article expose brièvement les difficultés rencontrées lors de sa mise en œuvre ainsi que les hypothèses que l'on doit poser afin de parvenir à un modèle opératoire. Dans la deuxième partie, nous reprenons un certain nombre d'observa­tions et de réflexions suggérées par ce mode d'évaluation. En premier lieu, nous établissons une relation statistique satisfaisante entre le mouvement de la productivité du travail total associé à la production d'une branche (i. e. le travail direct et le travail contenu dans ses consommations productives) et l'évolution de ses prix. Il apparaît même que la relation productivité-inflation soit sensiblement améliorée dès lors que l'on tient compte des performances du travail indirect. En second lieu, on assiste sur l'ensemble de la période à une décélération continue des gains de productivité du travail s'achevant par un recul absolu en 1975. Cette évolution est cependant différente selon les branches et les secteurs retenus. Cette diversité des situations s'explique (i) par les performances réalisées par la main-d'œuvre directe et («) par la possibilité inégale qui est offerte à chaque type d'activité de bénéficier de transferts de gains de productivité (au moyen du travail indirect utilisé).

Suggested Citation

  • Alain Lechuga, 1977. "Une application de la méthode de l'équivalent-travail : l'évolution du système productif français entre 1971-1975," Revue Économique, Programme National Persée, vol. 28(5), pages 793-831.
  • Handle: RePEc:prs:reveco:reco_0035-2764_1977_num_28_5_408350
    DOI: 10.3406/reco.1977.408350
    Note: DOI:10.3406/reco.1977.408350
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    1. Philippe Templé, 1976. "Déformations des prix relatifs et gains de productivité," Économie et Statistique, Programme National Persée, vol. 78(1), pages 29-39.
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