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Multi-Part Tariffs and Differentiated Commodity Taxation

Author

Listed:
  • Anna D'Annunzio
  • Mohammed Mardan
  • Antonio Russo

Abstract

We study commodity taxation in markets where firms, such as Internet Service Providers, energy suppliers and payment card platforms, adopt multi-part tariffs. We show that ad valorem taxes can correct underprovision and hence increase welfare, provided the government applies differentiated tax rates to the usage and access parts of the tariff. We obtain this result in different settings, including vertically interlinked markets, markets where firms adopt menus of tariffs to screen consumers and where they compete with multi-part tariffs. Our results suggest that exempting these markets from taxation may be inefficient.

Suggested Citation

  • Anna D'Annunzio & Mohammed Mardan & Antonio Russo, 2019. "Multi-Part Tariffs and Differentiated Commodity Taxation," CESifo Working Paper Series 7852, CESifo Group Munich.
  • Handle: RePEc:ces:ceswps:_7852
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    References listed on IDEAS

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    More about this item

    Keywords

    commodity taxation; multi-part tariffs; price discrimination;

    JEL classification:

    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation

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