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The Dynamics of Inequality and Social Security in General Equilibrium

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  • Song, Zheng

Abstract

This paper analyzes the dynamic politico-economic equilibrium of a model where repeated voting on social security and the evolution of household characteristics in general equilibrium are mutually affected over time. In particular, we incorporate within-cohort heterogeneity in a two-period Overlapping-Generation model to capture the intra-generational redistributive effect of social security transfers. Political decision-making is represented by a probabilistic voting à la Lindbeck and Weibull (1987). We analytically characterize the Markov perfect equilibrium, in which social security tax rates are shown to be increasing in wealth inequality. The dynamic interaction between inequality and social security leads to growing social security programs. We also perform some normative analysis, showing that the politico-economic equilibrium outcomes are fundamentally different from the Ramsey allocation.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 10365.

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Date of creation: 08 Apr 2008
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Handle: RePEc:pra:mprapa:10365

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Cited by:
  1. Song, Zheng & Storesletten, Kjetil & Zilibotti, Fabrizio, 2007. "Rotten Parents and Disciplined Children: A Politico-Economic Theory of Public Expenditure and Debt," Memorandum 05/2008, Oslo University, Department of Economics.
  2. Kuhle, Wolfgang, 2012. "Dynamic efficiency and the two-part golden rule with heterogeneous agents," Journal of Macroeconomics, Elsevier, vol. 34(4), pages 992-1006.
  3. Tetsuo Ono, 2013. "Public Education and Social Security: A Political Economy Approach," Discussion Papers in Economics and Business 13-06, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).
  4. Andreas Bachmann & Kaspar Wüthrich, 2013. "Evaluating pay-as-you-go social security systems," Diskussionsschriften dp1310, Universitaet Bern, Departement Volkswirtschaft.
  5. Tetsuo Ono, 2014. "Economic Growth and the Politics of Intergenerational Redistribution," Discussion Papers in Economics and Business 14-17, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).
  6. Hideki Konishi & Kozo Ueda, 2013. "Aging and Deflation from a Fiscal Perspective," IMES Discussion Paper Series 13-E-13, Institute for Monetary and Economic Studies, Bank of Japan.
  7. Ryo Arawatari & Tetsuo Ono, 2008. "A Political Economy Model of Earnings Mobility and Redistribution Policy," Discussion Papers in Economics and Business 08-18-Rev.2, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP), revised Sep 2010.
  8. Zheng Song & Kaiji Chen, 2009. "Markovian Social Security in Unequal Societies," 2009 Meeting Papers 318, Society for Economic Dynamics.
  9. Wang, Min & Zhao, Jinhua & Bhattacharya, Joydeep, 2013. "Optimal Health and Environmental Policies in a Pollution-Growth Nexus," Staff General Research Papers 35994, Iowa State University, Department of Economics.
  10. Monisankar Bishnu & Min Wang, 2013. "The Political intergenerational welfare state: A Unified framework," Indian Statistical Institute, Planning Unit, New Delhi Discussion Papers 13-08, Indian Statistical Institute, New Delhi, India.
  11. Ryo Arawatari & Tetsuo Ono, 2008. "Aging, Inequality and Social Security," Discussion Papers in Economics and Business 08-19, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).
  12. Ryo Arawatari & Tetsuo Ono, 2011. "A Political Economy Theory of Government Debt and Social Security," Discussion Papers in Economics and Business 11-33, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).
  13. Tetsuo Ono, 2013. "Public Education and Social Security: A Political Economy Approach," Discussion Papers in Economics and Business 13-06-Rev, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).

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