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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.

Suggested Citation

  • Song, Zheng, 2008. "The Dynamics of Inequality and Social Security in General Equilibrium," MPRA Paper 10365, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:10365
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    Cited by:

    1. Tetsuo Ono, 2014. "Intergenerational Politics, Government Debt, and Economic Growth," Discussion Papers in Economics and Business 14-23-Rev.2, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP), revised Jun 2015.
    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. Ono, Tetsuo & Uchida, Yuki, 2016. "Pensions, education, and growth: A positive analysis," Journal of Macroeconomics, Elsevier, vol. 48(C), pages 127-143.
    4. Tetsuo Ono, 2014. "Growth, Unemployment, and Fiscal Policy: A Political Economy Analysis," Discussion Papers in Economics and Business 14-30-Rev., Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP), revised Sep 2015.
    5. Marcin Waniek & Krzysztof Makarski & Joanna Tyrowicz & Marcin Bielecki, 2017. "Inequality in an OLG Economy with Heterogeneous Cohorts and Pension Systems," 2017 Meeting Papers 958, Society for Economic Dynamics.
    6. Wang, Min & Zhao, Jinhua & Bhattacharya, Joydeep, 2015. "Optimal health and environmental policies in a pollution-growth nexus," Journal of Environmental Economics and Management, Elsevier, vol. 71(C), pages 160-179.
    7. Tetsuo Ono, 2015. "Public education and social security: a political economy approach," Economics of Governance, Springer, vol. 16(1), pages 1-25, February.
    8. Bishnu, Monisankar & Wang, Min, 2017. "The political intergenerational welfare state," Journal of Economic Dynamics and Control, Elsevier, vol. 77(C), pages 93-110.
    9. Andreas Bachmann & Kaspar Wüthrich, 2013. "Evaluating pay-as-you-go social security systems," Diskussionsschriften dp1310, Universitaet Bern, Departement Volkswirtschaft.
    10. Ryo Arawatari & Tetsuo Ono, 2015. "A Political Economy Model of Earnings Mobility and Redistribution Policy," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 17(3), pages 346-382, June.
    11. Zheng Song & Kjetil Storesletten & Fabrizio Zilibotti, 2012. "Rotten Parents and Disciplined Children: A Politico‐Economic Theory of Public Expenditure and Debt," Econometrica, Econometric Society, vol. 80(6), pages 2785-2803, November.
    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. 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.
    14. 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.
    15. Marcin Bielecki & Joanna Tyrowicz & Krzysztof Makarski & Marcin Waniek, 2015. "Inequalities in an OLG economy with heterogeneity within cohorts and pension systems," Working Papers 2015-16, Faculty of Economic Sciences, University of Warsaw.
    16. 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).
    17. 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).
    18. Kaiji Chen & Zheng Song, 2014. "Markovian Social Security in Unequal Societies," Scandinavian Journal of Economics, Wiley Blackwell, vol. 116(4), pages 982-1011, October.
    19. Real Arai & Katsuyuki Naito & Tetsuo Ono, 2018. "Intergenerational policies, public debt, and economic growth: a politico{economic analysis," Discussion Papers in Economics and Business 18-12, Osaka University, Graduate School of Economics and Osaka School of International Public Policy (OSIPP).
    20. Joanna Tyrowicz & Krzysztof Makarski & Marcin Bielecki, 2016. "Reforming retirement age in DB and DC pension systems in an aging OLG economy with heterogenous agents," IZA Journal of Labor Policy, Springer;Forschungsinstitut zur Zukunft der Arbeit GmbH (IZA), vol. 5(1), pages 1-36, December.

    More about this item

    JEL classification:

    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
    • H55 - Public Economics - - National Government Expenditures and Related Policies - - - Social Security and Public Pensions
    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth

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