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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

Related research

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

References

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  1. Subir Chattopadhyay & Piero Gottardi, 1999. "Stochastic OLG Models, Market Structure, and Optimality," Working Papers 99-12, Brown University, Department of Economics.
  2. 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.
  3. 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.
  4. Homburg, Stefan, 2014. "The Efficiency of Unfunded Pension Schemes," Diskussionspapiere der Wirtschaftswissenschaftlichen Fakultät der Leibniz Universität Hannover dp-523, Leibniz Universität Hannover, Wirtschaftswissenschaftliche Fakultät.
  5. Gabrielle Demange & Guy Laroque, 1999. "Social Security and Demographic Shocks," Econometrica, Econometric Society, vol. 67(3), pages 527-542, May.
  6. 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.
  7. Kathryn Birkeland & Edward C. Prescott, 2007. "On the needed quantity of government debt," Quarterly Review, Federal Reserve Bank of Minneapolis, issue Nov, pages 2-15.
  8. Demange, Gabrielle & Laroque, Guy, 2000. " Social Security, Optimality, and Equilibria in a Stochastic Overlapping Generations Economy," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 2(1), pages 1-23.
  9. 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.
  10. Gabrielle Demange, 2002. "On optimality in intergenerational risk sharing," Economic Theory, Springer, vol. 20(1), pages 1-27.
  11. 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.
  12. 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.
  13. Duffie, Darrell, et al, 1994. "Stationary Markov Equilibria," Econometrica, Econometric Society, vol. 62(4), pages 745-81, July.
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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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