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Nonseparable Preferences and Optimal Social Security systems

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  • Narayana Kocherlakota

    ()
    (Department of Economics, University of Minnesota)

  • Borys Grochulski

Abstract

In this paper, we consider economies in which agents are privately informed about their skills, which are evolving stochastically over time. We require agents’ preferences to be weakly separable between the lifetime paths of consumption and labor. However, we allow for intertemporal nonseparabilities in preferences like habit formation. We show that such nonseparabilities imply that optimal asset income taxes are necessarily retrospective in nature. We show that under weak conditions, it is possible to implement a socially optimal allocation using a social security system in which taxes on wealth are linear, and taxes/transfers are history-dependent only at retirement. The average asset income tax in this system is zero.

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File URL: http://www.econ.umn.edu/merr/2007_1.pdf
File Function: First version, 2007
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Bibliographic Info

Paper provided by University of Minnesota, Department of Economics in its series Working Papers with number 2007-1.

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Length: 38 pages
Date of creation: 14 Aug 2007
Date of revision: 14 Aug 2007
Handle: RePEc:min:wpaper:2007-1

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Keywords: Nonseparable Preferences; Social Security;

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References

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  1. Grochulski, Borys & Piskorski, Tomasz, 2010. "Risky human capital and deferred capital income taxation," Journal of Economic Theory, Elsevier, vol. 145(3), pages 908-943, May.
  2. Diamond, P. A. & Mirrlees, J. A., 1978. "A model of social insurance with variable retirement," Journal of Public Economics, Elsevier, vol. 10(3), pages 295-336, December.
  3. Mikhail Golosov & Narayana Kocherlakota & Aleh Tsyvinski, 2001. "Optimal indirect and capital taxation," Staff Report 293, Federal Reserve Bank of Minneapolis.
  4. Albanesi, Stefania & Sleet, Christopher, 2003. "Dynamic Optimal Taxation with Private Information," CEPR Discussion Papers 4006, C.E.P.R. Discussion Papers.
  5. Mikhail Golosov & Aleh Tsyvinski, 2005. "Designing Optimal Disability Insurance: A Case for Asset Testing," Levine's Bibliography 784828000000000450, UCLA Department of Economics.
  6. Mark Huggett & Juan Carlos Parra, 2010. "How Well Does the U.S. Social Insurance System Provide Social Insurance?," Journal of Political Economy, University of Chicago Press, vol. 118(1), pages 76-112, 02.
  7. Mikhail Golosov & Aleh Tsyvinski & Ivan Werning, 2007. "New Dynamic Public Finance: A User's Guide," NBER Chapters, in: NBER Macroeconomics Annual 2006, Volume 21, pages 317-388 National Bureau of Economic Research, Inc.
  8. Narayana R. Kocherlakota, 2005. "Zero Expected Wealth Taxes: A Mirrlees Approach to Dynamic Optimal Taxation," Econometrica, Econometric Society, vol. 73(5), pages 1587-1621, 09.
  9. Daron Acemoglu & Kenneth Rogoff & Michael Woodford, 2009. "NBER Macroeconomics Annual 2008, Volume 23," NBER Books, National Bureau of Economic Research, Inc, number acem08-1.
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Citations

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Cited by:
  1. Borys Grochulski, 2008. "Limits to redistribution and intertemporal wedges : implications of Pareto optimality with private information," Economic Quarterly, Federal Reserve Bank of Richmond, issue Spr, pages 173-196.
  2. Borys Grochulski, 2011. "On the optimality of Ramsey taxes in Mirrlees economies," 2011 Meeting Papers 883, Society for Economic Dynamics.
  3. Gorry, Aspen & Oberfield, Ezra, 2010. "Optimal Taxation over the Life Cycle," MPRA Paper 25297, University Library of Munich, Germany.
  4. Marco Bassetto, 2009. "The Research Agenda: Marco Bassetto on the Quantitative Evaluation of Fiscal Policy Rules," EconomicDynamics Newsletter, Review of Economic Dynamics, vol. 10(2), April.
  5. Sebastian Koehne & Moritz Kuhn, 2014. "Optimal Taxation in a Habit Formation Economy," CESifo Working Paper Series 4581, CESifo Group Munich.
  6. Philippe Choné & Guy Laroque, 2014. "Income tax and retirement schemes," Sciences Po Economics Discussion Papers 2014-06, Sciences Po Departement of Economics.
  7. Oliver Denk & Jean-Baptiste Michau, 2013. "Optimal Social Security with Imperfect Tagging," Working Papers hal-00796521, HAL.
  8. Luigi Balletta & Giovanni Immordino, 2013. "On Repeated Moral Hazard with a Present Biased Agent," CSEF Working Papers 341, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
  9. Mikhail Golosov & Maxim Troshkin & Aleh Tsyvinski, 2011. "Optimal Dynamic Taxes," NBER Working Papers 17642, National Bureau of Economic Research, Inc.
  10. Jean-Baptiste Michau, 2011. "Optimal Redistribution with Intensive and Extensive Labor Supply Margins: A Life-Cycle Perspective," Working Papers hal-00639121, HAL.
  11. Moritz Kuhn & Sebastian Koehne, 2013. "Optimal capital taxation for time-nonseparable preferences," 2013 Meeting Papers 322, Society for Economic Dynamics.

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