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Indirect Taxation in Vertical Oligopoly

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  • Martin Peitz
  • Markus Reisinger

Abstract

This paper analyzes the effects of specific and ad valorem taxation in an industry with downstream and upstream oligopoly. We find that in the short run, i.e. when the number of firms in both markets is exogenous, the results concerning tax incidence tend to be qualitatively similar to models where the upstream market is perfectly competitive. However, both over- and undershifting are more pronounced, potentially to a very large extent. Instead, in the long run under endogenous entry and exit overshifting of both taxes is more likely to occur and is more pronounced under upstream oligopoly. As a result of this, a tax increase is more likely to be welfare reducing. We also demonstrate that downstream and upstream taxation are equivalent in the short run while this is not true for the ad valorem tax in the long run. We show that it is normally more efficient to tax downstream.

Suggested Citation

  • Martin Peitz & Markus Reisinger, 2009. "Indirect Taxation in Vertical Oligopoly," CESifo Working Paper Series 2583, CESifo Group Munich.
  • Handle: RePEc:ces:ceswps:_2583
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    References listed on IDEAS

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    More about this item

    Keywords

    specific tax; ad valorem tax; value-added tax; tax incidence; tax efficiency; indirect taxation; imperfect competition; vertical oligopoly;

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
    • H22 - Public Economics - - Taxation, Subsidies, and Revenue - - - Incidence
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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