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Third-Degree Price Discrimination in Two-Sided Markets

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  • de Cornière, Alexandre
  • Mantovani, Andrea
  • Shekhar, Shiva

Abstract

We investigate the welfare effects of third-degree price discrimination by a two-sided platform that enables interaction between buyers and sellers. Sellers are heterogenous with respect to their per-interaction benefit, and, under price discrimination, the platform can condition its fee on sellers’ type. In a model with linear demand on each side, we show that price discrimination: (i) increases participation on both sides; (ii) enhances total welfare; (iii) may result in a strict Pareto improvement, with both seller types being better-off than under uniform pricing. These results, which are in stark contrast to the traditional analysis of price discrimination, are driven by the existence of cross-group network effects. By improving the firm’s ability to monetize seller participation, price discrimination induces the platform to attract more buyers, which then increases seller participation. The Pareto improvement result means that even those sellers who pay a higher price under discrimination can be better-off, due to the increased buyer participation.

Suggested Citation

  • de Cornière, Alexandre & Mantovani, Andrea & Shekhar, Shiva, 2023. "Third-Degree Price Discrimination in Two-Sided Markets," TSE Working Papers 23-1464, Toulouse School of Economics (TSE).
    • Handle: RePEc:tse:wpaper:128428
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    References listed on IDEAS

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    Cited by:

    1. Tetsuya Shinkai & Naoshi Doi, 2023. "Price and quality decision of a monopoly platform for transaction with shipping," Discussion Paper Series 252-2, School of Economics, Kwansei Gakuin University, revised Jul 2023.

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    More about this item

    JEL classification:

    • D42 - Microeconomics - - Market Structure, Pricing, and Design - - - Monopoly
    • D62 - Microeconomics - - Welfare Economics - - - Externalities
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
    • L12 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Monopoly; Monopolization Strategies

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