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The cohort size-wage relationship in Europe

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  • Duncan Roth

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  • John Moffat

Abstract

The demographic and education composition of European countries is changing: the population share of young individuals is declining while that of the highly educated is rising. This study estimates the impact of cohort size on wages using data on several European countries to cast light on the economic consequences of these changes in the profile of the labour force. Theory predicts that within each educational class, similarly aged individuals compete for jobs but are only imperfectly substitutable with workers of different ages. Consequently, an increase in the population share of a specific age-education group is expected to have a depressing effect on the real wage rate of that group. To test this prediction empirically, this paper uses the 2010 release of the longitudinal EU-SILC which is a comprehensive data set covering individual and household-level microdata for a period of 4 years and 24 European countries. This paper differs from the preceding literature by analysing the effect of cohort size on individual wages rather than on the average wage of a specific age-education group which allows controlling for potentially confounding effects at the individual level. The effect of cohort size on male wages is identified through instrumental variables (IV) estimation that uses the birth rate at an individual's year of birth as an instrument for the potentially endogenous cohort size variable. In contrast to other identification strategies, this instrument is able to account for endogeneity caused by individual self-selection into specific educational groups as well as into specific geographical areas. The results support the hypothesis that cohort size has a negative effect on male wages, particularly for the highly educated. However, these negative cohort size effects are not persistent.

Suggested Citation

  • Duncan Roth & John Moffat, 2013. "The cohort size-wage relationship in Europe," ERSA conference papers ersa13p950, European Regional Science Association.
  • Handle: RePEc:wiw:wiwrsa:ersa13p950
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    References listed on IDEAS

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    Cited by:

    1. Mario Reinhold & Stephan Thomsen, 2017. "The changing situation of labor market entrants in Germany [Die veränderliche Situation für Berufseinsteiger in Deutschland]," Journal for Labour Market Research, Springer;Institute for Employment Research/ Institut für Arbeitsmarkt- und Berufsforschung (IAB), vol. 50(1), pages 161-174, August.
    2. Duncan Roth & John Moffat, 2014. "Cohort size and youth unemployment in Europe: a regional analysis," ERSA conference papers ersa14p1546, European Regional Science Association.
    3. de Graaff, Thomas & Ozgen, Ceren & Roth, Duncan, 2018. "Varying Youth Cohort Effects on Regional Labour Market Outcomes in Germany," IZA Discussion Papers 11932, Institute of Labor Economics (IZA).
    4. de Graaff, Thomas & Arribas-Bel, Daniel & Ozgen, Ceren, 2017. "Demographic Aging and Employment Dynamics in German Regions: Modeling Regional Heterogeneity," IZA Discussion Papers 10734, Institute of Labor Economics (IZA).
    5. John Moffat & Duncan Roth, 2017. "Cohort size and youth labour-market outcomes in Europe," Economics Bulletin, AccessEcon, vol. 37(4), pages 2735-2740.
    6. Viorel ROTILA & Lidia CELMARE, 2017. "Analysis of a Major Inequity in the Budgetary Wage System: Gerontocracy. Arguments and Solutions," LUMEN Proceedings, Editura Lumen, vol. 1(1), pages 730-739, December.
    7. Garloff, Alfred & Roth, Duncan, 2016. "Regional age structure and young workers' wages," IAB Discussion Paper 201606, Institut für Arbeitsmarkt- und Berufsforschung (IAB), Nürnberg [Institute for Employment Research, Nuremberg, Germany].
    8. John Moffat & Duncan Roth, 2014. "Cohort size and youth labour-market outcomes: the role of measurement error," MAGKS Papers on Economics 201440, Philipps-Universität Marburg, Faculty of Business Administration and Economics, Department of Economics (Volkswirtschaftliche Abteilung).

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    More about this item

    Keywords

    Cohort size; wages; causal effect; NUTS 1;
    All these keywords.

    JEL classification:

    • J10 - Labor and Demographic Economics - - Demographic Economics - - - General
    • J21 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Force and Employment, Size, and Structure
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials

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