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Commodity taxes and welfare under endogenous market conduct

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  • Henrik Vetter

    (Statsbiblioteket)

Abstract

We consider consumption taxes in a model of endogenous Cournot versus Bertrand competition. It is argued that when the choice of unit versus ad valorem taxes affects longer-term decisions beyond the customary price or quantity decisions, the mix of the two taxes co-determines market conduct. This gives ad valorem taxes an anti-competitive effect that harms ad valorem taxes’ efficiency in comparison with unit taxes. We show that a mix of the taxes—or a unit tax alone if we compare one or the other of the taxes—is sometimes welfare superior on account of consumer-price and tax revenue effects. A practical implication of our findings is that pass-through rates are only sometimes useful guides for policy. In fact, we show when the proper response to demand for higher revenue is a higher unit tax rate and a lower ad valorem tax rate.

Suggested Citation

  • Henrik Vetter, 2017. "Commodity taxes and welfare under endogenous market conduct," Journal of Economics, Springer, vol. 122(2), pages 137-154, October.
    • Handle: RePEc:kap:jeczfn:v:122:y:2017:i:2:d:10.1007_s00712-017-0538-4
    DOI: 10.1007/s00712-017-0538-4
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    References listed on IDEAS

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    Cited by:

    1. Qidi Zhang & Leonard F.S. Wang & Yapo Yang, 2020. "Indirect taxation with shadow cost of public funds in mixed oligopoly," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 41(3), pages 415-425, April.
    2. Helmuts Azacis & David R Collie, 2018. "Taxation and the sustainability of collusion: ad valorem versus specific taxes," Journal of Economics, Springer, vol. 125(2), pages 173-188, October.
    3. 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.
    4. Xingtang Wang & Leonard F. S. Wang, 2022. "Indirect taxation, quality choice, and social welfare," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 43(6), pages 1764-1772, September.

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    More about this item

    Keywords

    Oligopoly; Endogenous market conduct; Ad valorem taxes; Unit taxes;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation

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