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Fertility, immigration, and lifetime wages under imperfect labor substitution

Published online by Cambridge University Press:  26 November 2020

Ross Guest  and
Nick Parr
Ross Guest*
Affiliation:
Griffith University, Griffith Business School, Nathan, Queensland, Australia
Nick Parr
Affiliation:
Faculty of Business and Economics, Macquarie University, Sydney, Australia
*
*Corresponding author. E-mail: [email protected]
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Abstract

This paper provides new insights into the effect of birth cohort size on cohort lifetime wages and its sensitivity to the future trajectories of immigration and fertility. The main innovation is to relax the typical assumption of perfect substitution of labor by age. The effect of imperfect substitution of labor by age is to qualify the standard result that smaller birth cohorts are likely to enjoy relatively high wages since that result depends on the size of co-worker cohorts. The positive small cohort effect on lifetime wages therefore depends on demographic patterns, which are simulated here through low and high fertility and immigration projections. The analysis applies to actual and projected cohorts for Australia and tests the sensitivity to alternative demographic parameters, and the substitution and discount parameters. The effects of imperfect substitution can amount several percentage points of lifetime wages.

Keywords

Fertilityimmigrationimperfect substitutionintergenerational equitywagesJ21J30D00
Type
Research Papers
Information
Journal of Demographic Economics , Volume 86 , Issue 4 , December 2020 , pp. 503 - 532
Copyright
Copyright © Université catholique de Louvain 2020

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