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Heterogeneity matters: labour productivity differentiated by age and skills

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Author Info

  • Muriel Roger

    (EEP-PSE - Ecole d'Économie de Paris - Paris School of Economics - Ecole d'Économie de Paris, INSEE-D3E - Département des études économiques d'ensemble - INSEE, LEA - Laboratoire d'Economie Appliquée - INRA : UR1043)

  • Malgorzata Wasmer

    (Department of Economics - University of Fribourg - University of Fribourg, GATE - Groupe d'analyse et de théorie économique - CNRS : UMR5824 - Université Lumière - Lyon II - Ecole Normale Supérieure Lettres et Sciences Humaines)

Abstract

This study aims at evaluating the actual profile of marginal productivity across the age groups within the workforce. As age-productivity profile might differ between occupations, we differentiate the workforce simultaneously by skills (low-skilled, high-skilled) and by age (young, middle-aged, old). Estimating a production function with a nested constant-elasticity-of-substitution (CES) specification in labour allows the imperfect substitution between different categories of workers. We use French dataset for manufacturing, services and trade sectors. Labour productivity is found to be the lowest for the low-skilled older workers while high-skilled senior employees in manufacturing and trade are the most productive group. Throughout the sectors, wage rates vary considerably less than productivity and wage profiles are steeper for high-skilled workers. The relative productivity over wage ratio is found to be sector-specific. It is the highest for young workers in manufacturing while in services and trade it is the highest for the mid-age employees.

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Bibliographic Info

Paper provided by HAL in its series Working Papers with number halshs-00575086.

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Date of creation: Nov 2009
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Handle: RePEc:hal:wpaper:halshs-00575086

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Related research

Keywords: ageing ; older workers ; labour productivity ; CES production function ; endogeneity;

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Cited by:
  1. Anna Ruzik-Sierdzinska & Claudia Villosio & Michele Belloni & Maciej Lis & Monika Potoczna, 2013. "Age and productivity. Human Capital Accumulation and Depreciation," CASE Network Reports 0114, CASE-Center for Social and Economic Research.

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