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On the role of labor supply for the optimal size of Social Security

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  • Hillebrand, Marten

Abstract

The paper studies the welfare effects of a Social Security system in a stylized overlapping generations economy with random production and capital accumulation. Different welfare concepts including long run optimality, social optimality, and time consistency are employed to determine the optimal size of the system. When labor supply is exogenous, a unique contribution level can be identified which is optimal according to all three concepts. When labor supply is endogenous, however, this result generically fails to hold and the long-run optimal solution is only constrained socially optimal while the time-consistent policy may even lead to an inefficient equilibrium.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Dynamics and Control.

Volume (Year): 35 (2011)
Issue (Month): 7 (July)
Pages: 1091-1105

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Handle: RePEc:eee:dyncon:v:35:y:2011:i:7:p:1091-1105

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Web page: http://www.elsevier.com/locate/jedc

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Keywords: Overlapping generations Social Security Capital accumulation Labor supply Social optimality Long-run optimality Time consistency;

References

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  1. Richard Rogerson & Johanna Wallenius, 2007. "Micro and Macro Elasticities in a Life Cycle Model With Taxes," NBER Working Papers 13017, National Bureau of Economic Research, Inc.
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  8. Peled, Dan, 1984. "Stationary pareto optimality of stochastic asset equilibria with overlapping generations," Journal of Economic Theory, Elsevier, vol. 34(2), pages 396-403, December.
  9. Hauenschild, Nils, 2002. "Capital Accumulation in a Stochastic Overlapping Generations Model with Social Security," Journal of Economic Theory, Elsevier, vol. 106(1), pages 201-216, September.
  10. Demange, G. & Laroque, G., 1996. "Social Security and Demographic Shocks," DELTA Working Papers 96-04, DELTA (Ecole normale supérieure).
  11. Wang, Yong, 1994. "Stationary Markov Equilibria in an OLG Model with Correlated Production Shocks," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 35(3), pages 731-44, August.
  12. Homburg, Stefan, 1990. "The Efficiency of Unfunded Pension Schemes," EconStor Open Access Articles, ZBW - German National Library of Economics, pages 640-647.
  13. Breyer, Friedrich & Straub, Martin, 1991. "Welfare effects of unfunded pension systems when labor supply is endogenous," Discussion Papers, Series 1 252, University of Konstanz, Department of Economics.
  14. Sakai, Yoshikiyo, 1988. "Conditional Pareto optimality of stationary equilibrium in a stochastic overlapping generations model," Journal of Economic Theory, Elsevier, vol. 44(1), pages 209-213, February.
  15. Feldstein, Martin S, 1974. "Social Security, Induced Retirement, and Aggregate Capital Accumulation," Journal of Political Economy, University of Chicago Press, vol. 82(5), pages 905-26, Sept./Oct.
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Cited by:
  1. Hillebrand, Marten, 2012. "On the optimal size of Social Security in the presence of a stock market," Journal of Mathematical Economics, Elsevier, vol. 48(1), pages 26-38.

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