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Unit Versus Ad Valorem Taxes: The Private Ownership of Monopoly In General Equilibrium

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  • Blackorby, Charles
  • Murty, Sushama
Abstract
Blackorby and Murty [2007] prove that, with a monopoly and under one hundred percent profit taxation and uniform lump-sum transfers, the utility possibility sets of economies with unit and ad valorem taxes are identical. This welfare-equivalence is in contrast to most previous studies. In this paper, we relax the assumption of one hundred percent profit taxation and allow the consumers to receive profit incomes from ownership of shares in the monopoly firm. We find that, for any fixed vector of profit shares, the utility possibility sets of economies with unit and ad valorem taxes are not generally identical. But it does not imply that one completely dominates the other. Rather, the two utility possibility frontiers cross each other.

Suggested Citation

  • Blackorby, Charles & Murty, Sushama, 2008. "Unit Versus Ad Valorem Taxes: The Private Ownership of Monopoly In General Equilibrium," Economic Research Papers 269755, University of Warwick - Department of Economics.
    • Handle: RePEc:ags:uwarer:269755
    DOI: 10.22004/ag.econ.269755
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    References listed on IDEAS

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    1. Delipalla, Sofia & Keen, Michael, 1992. "The comparison between ad valorem and specific taxation under imperfect competition," Journal of Public Economics, Elsevier, vol. 49(3), pages 351-367, December.
    2. Charles Blackorby & Sushama Murty, 2013. "Unit Versus Ad Valorem Taxes: The Private Ownership of Monopoly in General Equilibrium," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 15(4), pages 547-579, August.
    3. Blackorby, Charles & Murty, Sushama, 2007. "Unit versus ad valorem taxes: Monopoly in general equilibrium," Journal of Public Economics, Elsevier, vol. 91(3-4), pages 817-822, April.
    4. Guesnerie, Roger & Laffont, Jean-Jacques, 1978. "Taxing price makers," Journal of Economic Theory, Elsevier, vol. 19(2), pages 423-455, December.
    5. Michael Keen, 1998. "The balance between specific and ad valorem taxation," Fiscal Studies, Institute for Fiscal Studies, vol. 19(1), pages 1-37, February.
    6. Ben Lockwood, 2004. "Competition in Unit vs. Ad Valorem Taxes," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 11(6), pages 763-772, November.
    7. D. B. Suits & R. A. Musgrave, 1953. "Ad Valorem and Unit Taxes Compared," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 67(4), pages 598-604.
    8. Skeath, Susan E. & Trandel, Gregory A., 1994. "A Pareto comparison of ad valorem and unit taxes in noncompetitive environments," Journal of Public Economics, Elsevier, vol. 53(1), pages 53-71, January.
    9. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680.
    10. Blackorby, Charles & Diewert, W E, 1979. "Expenditure Functions, Local Duality, and Second Order Approximations," Econometrica, Econometric Society, vol. 47(3), pages 579-601, May.
    Full references (including those not matched with items on IDEAS)

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    Cited by:

    1. Sophia Delipalla, 2009. "Commodity Tax Structure And Informal Activity," Bulletin of Economic Research, Wiley Blackwell, vol. 61(3), pages 283-294, July.
    2. Kuang-Cheng Andy Wang & Ping-Yao Chou & Wen-Jung Liang, 2022. "Commodity taxes and rent extraction," Journal of Economics, Springer, vol. 135(3), pages 285-297, April.
    3. Valido, Jorge & Pilar Socorro, M. & Hernández, Aday & Betancor, Ofelia, 2014. "Air transport subsidies for resident passengers when carriers have market power," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 70(C), pages 388-399.
    4. Hiroshi Aiura & Hikaru Ogawa, 2019. "Indirect taxes in a cross-border shopping model: a monopolistic competition approach," Journal of Economics, Springer, vol. 128(2), pages 147-175, October.
    5. Charles Blackorby & Sushama Murty, 2013. "Unit Versus Ad Valorem Taxes: The Private Ownership of Monopoly in General Equilibrium," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 15(4), pages 547-579, August.
    6. Kazuki Hiraga, 2019. "Unit versus ad valorem tax comparisons in a simple New Keynesian dynamic stochastic general equilibrium model," Eurasian Economic Review, Springer;Eurasia Business and Economics Society, vol. 9(4), pages 459-466, December.
    7. Plewka, Jörg, 2007. "Fiscal Discrimination Between Consumer Groups: Tax Burden Distribution Under Price Discrimination," Ruhr Economic Papers 19, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen.
    8. Laszlo Goerke, 2011. "Commodity tax structure under uncertainty in a perfectly competitive market," Journal of Economics, Springer, vol. 103(3), pages 203-219, July.
    9. Shiou-Yen Chu & Tsaur-Chin Wu, 2023. "Ad valorem versus unit taxes on capital in a dynamic stochastic general equilibrium model," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 30(6), pages 1435-1456, December.
    10. repec:zbw:rwirep:0019 is not listed on IDEAS
    11. de Rus, Ginés & Socorro, M. Pilar, 2022. "Subsidies in air transport markets: The economic consequences of choosing the wrong mechanism," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 160(C).
    12. Christos Kotsogiannis & Konstantinos Serfes, 2014. "The Comparison of ad Valorem and Specific Taxation under Uncertainty," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 16(1), pages 48-68, February.
    13. Olena SOKOLOVSKA & Dmytro SOKOLOVSKYI, 2016. "Modeling Of Consumption Taxes For Different Market Framework: The Case Of Ukraine," ECONOMIC COMPUTATION AND ECONOMIC CYBERNETICS STUDIES AND RESEARCH, Faculty of Economic Cybernetics, Statistics and Informatics, vol. 50(4), pages 75-92.
    14. McCalman, Phillip, 2023. "Robust trade policy to offset foreign market power," European Economic Review, Elsevier, vol. 154(C).
    15. Jörg Plewka, 2007. "Fiscal Discrimination Between Consumer Groups: Tax Burden Distribution Under Price Discrimination," Ruhr Economic Papers 0019, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen.
    16. Hong Hwang & Chao-Cheng Mai & Ya-Po Yang, 2015. "Specific vs Ad Valorem Strategic Export Subsidies with Taxation Distortion," Review of Development Economics, Wiley Blackwell, vol. 19(4), pages 820-828, November.
    17. Henrik Vetter, 2017. "Commodity taxes and welfare under endogenous market conduct," Journal of Economics, Springer, vol. 122(2), pages 137-154, October.
    18. Kojun Hamada & Takao Ohkawa & Makoto Okamura, 2022. "Optimal taxation in a free‐entry Cournot oligopoly: The average cost function approach," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 55(2), pages 1166-1192, May.

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    More about this item

    Keywords

    Financial Economics; Industrial Organization;

    JEL classification:

    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation

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