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Aging, Inequality and Social Security

  • Ryo Arawatari


    (Graduate School of Economics, Osaka University)

  • Tetsuo Ono


    (Graduate School of Economics, Osaka University)

This paper develops an overlapping-generations model including wage inequality within a generation and intra- and intergenerational resource reallocation via social security. Based on the concept of a stationary Markov perfect equilibrium, the paper focuses on the feedback mechanism between current individualsf decisions on saving and future voting on social security. The paper demonstrates the determination of social security via probabilistic voting and its consequence for consumption inequality within a generation. It is shown that when the elderly are politically powerful, (i) the economy attains an oscillatory path of inequality and social security, and (ii) aging may reduce consumption inequality.

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Paper provided by Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP) in its series Discussion Papers in Economics and Business with number 08-19.

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Length: 36 pages
Date of creation: Apr 2008
Date of revision:
Handle: RePEc:osk:wpaper:0819
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  1. Hassler, John & Mora, José V Rodríguez & Storesletten, Kjetil & Zilibotti, Fabrizio, 2001. "The Survival of the Welfare State," CEPR Discussion Papers 2905, C.E.P.R. Discussion Papers.
  2. Deaton, A. & Paxson, C., 1993. "Intertemporal Choice and Inequality," Papers 168, Princeton, Woodrow Wilson School - Development Studies.
  3. Ohtake, Fumio & Saito, Makoto, 1998. "Population Aging and Consumption Inequality in Japan," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 44(3), pages 361-81, September.
  4. Song, Zheng, 2008. "The Dynamics of Inequality and Social Security in General Equilibrium," MPRA Paper 10365, University Library of Munich, Germany.
  5. Phillip Swagel & Efraim Sadka & Assaf Razin, 2002. "The Aging of the Population and the Size of the Welfare State," IMF Working Papers 02/68, International Monetary Fund.
  6. GALASSO, Vincenzo & PROFETA, Paola, 2003. "Lessons for an aging society: the political sustainability of social security systems," CORE Discussion Papers 2003077, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  7. Martin Gonzalez-Eiras & Dirk Niepelt, 2007. "The Future of Social Security," Working Papers 07.02, Swiss National Bank, Study Center Gerzensee.
  8. Georges Casamatta & Helmuth Cremer & Pierre Pestieau, 2001. "Demographic Shock and Social Security: A Political Economy Perspective," International Tax and Public Finance, Springer, vol. 8(4), pages 417-431, August.
  9. Koethenbuerger, Marko & Poutvaara, Panu & Profeta, Paola, 2008. "Why are more redistributive social security systems smaller? A median voter approach," Munich Reprints in Economics 19459, University of Munich, Department of Economics.
  10. Georges Casamatta & Helmuth Cremer & Pierre Pestieau, 2000. "The Political Economy of Social Security," CESifo Working Paper Series 259, CESifo Group Munich.
  11. Marco Bassetto, 1999. "Political economy of taxation in an overlapping-generations economy," Discussion Paper / Institute for Empirical Macroeconomics 133, Federal Reserve Bank of Minneapolis.
  12. G. BellettiniC Berti Ceroni, 1999. "Income Distribution, Borrowing Constraints and Redistributive Policies," Working Papers 359, Dipartimento Scienze Economiche, Universita' di Bologna.
  13. Grossman, Gene M & Helpman, Elhanan, 1998. "Intergenerational Redistribution with Short-Lived Governments," Economic Journal, Royal Economic Society, vol. 108(450), pages 1299-1329, September.
  14. Hassler, John & Krusell, Per & Storesletten, Kjetil & Zilibotti, Fabrizio, 2005. "The dynamics of government," Journal of Monetary Economics, Elsevier, vol. 52(7), pages 1331-1358, October.
  15. Razin, Assaf & Sadka, Efraim & Swagel, Phill, 2001. "The Aging Population and the Size of the Welfare State," CEPR Discussion Papers 2930, C.E.P.R. Discussion Papers.
  16. J. Ignacio Conde-Ruiz & Paola Profeta, 2007. "The Redistributive Design of Social Security Systems," Economic Journal, Royal Economic Society, vol. 117(520), pages 686-712, 04.
  17. Assar Lindbeck & Jörgen Weibull, 1987. "Balanced-budget redistribution as the outcome of political competition," Public Choice, Springer, vol. 52(3), pages 273-297, January.
  18. Galasso, Vincenzo & Profeta, Paola, 2007. "How does ageing affect the welfare state?," European Journal of Political Economy, Elsevier, vol. 23(2), pages 554-563, June.
  19. Azariadis, Costas & Galasso, Vincenzo, 2002. "Fiscal Constitutions," Journal of Economic Theory, Elsevier, vol. 103(2), pages 255-281, April.
  20. Lorenzo Forni, 2005. "Social Security as Markov Equilibrium in OLG Models," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 8(1), pages 178-194, January.
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