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Income taxation, wealth effects, and uncertainty: Portfolio adjustments with isoelastic utility and discrete probability

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  • Sims, Theodore S.

Abstract

Assuming isoelastic utility and binomial probability, the optimal adjustment to income taxation of portfolio returns is to scale up the holding of the risky asset by just [1+r(1−t)/(1+r)(1−t)], not 1/(1−t), as the literature classically maintains.

Suggested Citation

  • Sims, Theodore S., 2015. "Income taxation, wealth effects, and uncertainty: Portfolio adjustments with isoelastic utility and discrete probability," Economics Letters, Elsevier, vol. 135(C), pages 52-54.
  • Handle: RePEc:eee:ecolet:v:135:y:2015:i:c:p:52-54
    DOI: 10.1016/j.econlet.2015.07.006
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    References listed on IDEAS

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    1. Poterba, James M., 2002. "Taxation, risk-taking, and household portfolio behavior," Handbook of Public Economics,in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 3, chapter 17, pages 1109-1171 Elsevier.
    2. Kaplow, Louis, 1994. "Taxation and Risk Taking: A General Equilibrium Perspective," National Tax Journal, National Tax Association, vol. 47(4), pages 789-98, December.
    3. J. Tobin, 1958. "Liquidity Preference as Behavior Towards Risk," Review of Economic Studies, Oxford University Press, vol. 25(2), pages 65-86.
    4. Kaplow, Louis, 1994. "Taxation and Risk Taking: A General Equilibrium Perspective," National Tax Journal, National Tax Association;National Tax Journal, vol. 47(4), pages 789-798, December.
    5. Agnar Sandmo, 1977. "Portfolio Theory, Asset Demand and Taxation: Comparative Statics with Many Assets," Review of Economic Studies, Oxford University Press, vol. 44(2), pages 369-379.
    6. J. E. Stiglitz, 1969. "The Effects of Income, Wealth, and Capital Gains Taxation on Risk-Taking," The Quarterly Journal of Economics, Oxford University Press, vol. 83(2), pages 263-283.
    7. Sandmo, Agnar, 1985. "The effects of taxation on savings and risk taking," Handbook of Public Economics,in: A. J. Auerbach & M. Feldstein (ed.), Handbook of Public Economics, edition 1, volume 1, chapter 5, pages 265-311 Elsevier.
    8. Louis Kaplow, 1991. "Taxation and Risk Taking: A General Equilibrium Perspective," NBER Working Papers 3709, National Bureau of Economic Research, Inc.
    9. Evsey D. Domar & Richard A. Musgrave, 1944. "Proportional Income Taxation and Risk-Taking," The Quarterly Journal of Economics, Oxford University Press, vol. 58(3), pages 388-422.
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    More about this item

    Keywords

    Taxation and risk; Uncertainty; Portfolio choice; Cash-flow taxation; Income taxation;

    JEL classification:

    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
    • H22 - Public Economics - - Taxation, Subsidies, and Revenue - - - Incidence
    • H24 - Public Economics - - Taxation, Subsidies, and Revenue - - - Personal Income and Other Nonbusiness Taxes and Subsidies
    • K34 - Law and Economics - - Other Substantive Areas of Law - - - Tax Law

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