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Demographic Change, Human Capital and Welfare

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  • Ludwig, Alexander

    ()

  • Schelkle, Thomas

    ()

  • Vogel, Edgar

    ()
    (Munich Center for the Economics of Aging (MEA))

Abstract

This paper employs a large scale overlapping generations (OLG) model with endogenous human capital formation using a Ben-Porath (1967) technology to evaluate the quantitative role of human capital adjustments for the economic consequences of demographic change. We find that endogenous human capital formation is a quantitatively important adjustment mechanism which substantially mitigates the macroeconomic impact of population aging. On the aggregate level, the predicted decrease of the rate of return to physical capital is only one third of the predicted decrease in a standard model with a fixed human capital profile. In terms of welfare, while young agents with little assets gain up to 0.8% in consumption from increasing wages in both models, welfare losses from decreasing returns of older and asset rich households are substantial. But importantly, these losses are about 50 ? 70% higher in the model without endogenous human capital formation. Ignoring this adjustment channel thus leads to quantitatively important biases of the welfare assessment of demographic change. We also document that not reforming the social security system but letting contribution rates increase will largely offset any positive welfare effects for future generations.

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Paper provided by Munich Center for the Economics of Aging (MEA) at the Max Planck Institute for Social Law and Social Policy in its series MEA discussion paper series with number 10196.

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Date of creation: 15 Jan 2010
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Handle: RePEc:mea:meawpa:10196

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