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Age distribution and age heterogeneities in economic profiles as sources of conflict between efficiency and equity in the Solow-Stiglitz framework

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  • Piero Manfredi
  • Luciano Fanti

Abstract

Much of the debate on the role played by the age distribution of the population in shaping the growth regimes of the neoclassical growth model of Solow has focused on the notion of capital dilution and the possibility that "optimal" population growth regimes (OPGR) exist. Conversely less has been done as regards the implications of growth regimes for distribution, probably because Stiglitz's (1969) fundamental result predicts that economic growth sets in motion forces of an "essentially" egalitarian nature. In this paper we start to investigate how distinct regimes of population growth and age distribution affect income and wealth distribution in a Solow-Stiglitz framework embedding a single but fundamental "inequality preserving" force, e.g. an heterogeneous age profile of labour productivity. Our main results are that 1) a population growth regime characterised by minimal inequality (a MinIPGR) often exists, but 2) it is usually amazingly far from the corresponding OPGR, when also an OPGR exists. This seems to suggest a potentially striking trade-off between efficiency and equity during economic growth.

Suggested Citation

  • Piero Manfredi & Luciano Fanti, 2004. "Age distribution and age heterogeneities in economic profiles as sources of conflict between efficiency and equity in the Solow-Stiglitz framework," Discussion Papers 2004/37, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
  • Handle: RePEc:pie:dsedps:2004/37
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    File URL: http://www.ec.unipi.it/documents/Ricerca/papers/2004-37.pdf
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    References listed on IDEAS

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    1. W. Brian Arthur & Geoffrey McNicoll, 1977. "Optimal Time Paths with Age-Dependence: A Theory of Population Policy," Review of Economic Studies, Oxford University Press, vol. 44(1), pages 111-123.
    2. Miles, David, 1999. "Modelling the Impact of Demographic Change upon the Economy," Economic Journal, Royal Economic Society, vol. 109(452), pages 1-36, January.
    3. Paul A. Samuelson, 1958. "An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money," Journal of Political Economy, University of Chicago Press, vol. 66, pages 467-467.
    4. Judith K. Hellerstein & David Neumark, 1995. "Are Earnings Profiles Steeper Than Productivity Profiles? Evidence from Israeli Firm-Level Data," Journal of Human Resources, University of Wisconsin Press, vol. 30(1), pages 89-112.
    5. Arthur, W Brian & McNicoll, Geoffrey, 1978. "Samuelson, Population and Intergenerational Transfers," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 19(1), pages 241-246, February.
    6. Ronald Lee, 1980. "Age Structure, Intergenerational Transfers and Economic Growth : an Overview," Revue Économique, Programme National Persée, vol. 31(6), pages 1129-1156.
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    Citations

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    Cited by:

    1. Luciano Fanti & Luca Gori, 2012. "Endogenous Lifetime in an Overlapping-Generations Small Open Economy," FinanzArchiv: Public Finance Analysis, Mohr Siebeck, Tübingen, vol. 68(2), pages 121-152, June.
    2. Marco Guerrazzi, 2005. "Notes on Continuous Dynamic Models: the Benhabib-Farmer Condition for Indeterminacy," Discussion Papers 2005/54, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
    3. Lorenzo Corsini & Elisabetta Olivieri, 2008. "Technological Change and the Wage Differential between Skilled and Unskilled Workers: Evidence from Italy," Discussion Papers 2008/73, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
    4. Luciano Fanti & Luca Gori, 2009. "Endogenous fertility, endogenous lifetime and economic growth: the role of health and child policies," Discussion Papers 2009/91, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
    5. Maurizio Lisciandra, 2007. "The Role of Reciprocating Behaviour in Contract Choice," Discussion Papers 2007/65, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
    6. Luciano Fanti & Luca Gori, 2008. "PAYG pensions and economic cycles: exogenous versus endogenous fertility," Discussion Papers 2008/75, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.

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