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Social Security with Rational and Hyperbolic Consumers

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Author Info

  • Hans Fehr
  • Christian Habermann
  • Fabian Kindermann

Abstract

The present paper studies the role of social security in an economy populated by overlapping generations of individuals that have time-consistent or time-inconsistent preferences, face mortality and individual income risk, borrowing constraints as well as progressive income taxes. Our simulations start from an artificial equilibrium where social security is completely neutral. Next we introduce successively alternative deviations from neutrality in order to isolate the various economic effects of social security. The latter are mainly the insurance provision against mortality and income risk, the negative liquidity effects for young households and the provision of a commitment technology for present-biased hyperbolic consumers. Our simulations indicate that the positive effects of social security dominate the negative ones for a wide range of parameter combinations. For our central parametrization social security induces an overall welfare gain which amounts to roughly 1.5 percent of aggregate resources in the hyperbolic model and a welfare loss of about 0.5 percent of resources in the model with rational consumers.

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File URL: http://www.bgpe.de/texte/DP/010_habermann1.pdf
File Function: First version, 2006
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Bibliographic Info

Paper provided by Bavarian Graduate Program in Economics (BGPE) in its series Working Papers with number 010.

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Length: 34 pages
Date of creation: Dec 2006
Date of revision:
Handle: RePEc:bav:wpaper:010_kindermann1

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Related research

Keywords: social security; stochastic general equilibrium; hyperbolic consumers;

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References

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  1. Juan A. Rojas & Carlos Urrutia, 2004. "Social Security Reform with Uninsurable Income Risk and Endogenous Borrowing Constraints," Working Papers 0409, Centro de Investigacion Economica, ITAM.
  2. Dirk Krueger & Felix Kubler, 2003. "Pareto Improving Social Security Reform when Financial Markets are Incomplete?," NBER Working Papers 9410, National Bureau of Economic Research, Inc.
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  4. Kjetil Storesletten & Chris Telmer & Amir Yaron, 1998. "The risk sharing implications of alternative social security arrangements," GSIA Working Papers 252, Carnegie Mellon University, Tepper School of Business.
  5. Ayse Imrohoroglu & Selahattin Imrohoroglu & Douglas H. Joines, 1999. "Social Security in an Overlapping Generations Economy with Land," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(3), pages 638-665, July.
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  14. Juan Carlos Conesa & Carlos Garriga, 2007. "Optimal fiscal policy in the design of Social Security reforms," Working Papers 2007-035, Federal Reserve Bank of St. Louis.
  15. Fehr, Hans, 1999. "Pension reform during the demographic transition," W.E.P. - Würzburg Economic Papers 8, University of Würzburg, Chair for Monetary Policy and International Economics.
  16. Fehr, Hans, 1999. "Welfare Effects of Dynamic Tax Reforms," Beiträge zur Finanzwissenschaft, Mohr Siebeck, Tübingen, edition 1, volume 5, number urn:isbn:9783161470165.
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Citations

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Cited by:
  1. Hans Fehr & Manuel Kallweit & Fabian Kindermann, 2011. "Should Pensions be Progressive? Yes, at least in Germany!," CESifo Working Paper Series 3636, CESifo Group Munich.
  2. Kumru, Cagri S. & Thanopoulos, Athanasios C., 2011. "Social security reform with self-control preferences," Journal of Public Economics, Elsevier, vol. 95(7), pages 886-899.
  3. Hans Fehr & Johannes Uhde, 2013. "On the optimal design of pension systems," Empirica, Springer, vol. 40(3), pages 457-482, August.
  4. Fehr, Hans & Jokisch, Sabine & Kallweit, Manuel & Kindermann, Fabian & Kotlikoff, Laurence J., 2013. "Generational Policy and Aging in Closed and Open Dynamic General Equilibrium Models," Handbook of Computable General Equilibrium Modeling, Elsevier.
  5. CREMER, Helmuth & PESTIEAU, Pierre, 2010. "Myopia, redistribution and pensions," CORE Discussion Papers 2010038, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  6. Jan Hagemejer & Krzysztof Makarski & Joanna Tyrowicz, 2013. "Efficiency of the pension reform: the welfare effects of various fiscal closures," Working Papers 2013-23, Faculty of Economic Sciences, University of Warsaw.
  7. Fehr, Hans & Uhde, Johannes, 2012. "Optimal Pension Design in General Equlibrium," Annual Conference 2012 (Goettingen): New Approaches and Challenges for the Labor Market of the 21st Century 62024, Verein für Socialpolitik / German Economic Association.
  8. Hans Fehr & Manuel Kallweit & Fabian Kindermann, 2009. "Marital Risk, Family Insurance, and Public Policy," SOEPpapers on Multidisciplinary Panel Data Research 226, DIW Berlin, The German Socio-Economic Panel (SOEP).
  9. Hans Fehr, 2009. "Computable Stochastic Equilibrium Models and Their Use in Pension- and Ageing Research," De Economist, Springer, vol. 157(4), pages 359-416, December.
  10. Cagri Seda Kumru & Athanasios C. Thanopoulos, 2009. "Social Security Reform and Temptation," CESifo Working Paper Series 2778, CESifo Group Munich.

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