變局與挑戰—貿易政策與產業組織研究群
研討日期 Date, time	2025-10-27 T 10:30-12:00
研討地點 Location	國立臺灣大學社會科學院710會議室 Room 710, College of Social Science, NTU
主講題目 Title of the paper	Third-Degree Price Discrimination in Two-Sided Markets
作者 Authors of the paper	Alexandre de Cornière, Andrea Mantovani & Shiva Shekhar
文獻出處 Journal, vol.(issue), pp	Management Science Volume 71, Issue 4, April 2025, Pages 3340–3356
主講人 Presenter	曹古駒
參加人員 Participants	黃鴻，林燕淑，曹古駒，施姵全，周冰瑤，張瑞雲，許至乙，林晏如，，Ayu Sasni Munte， Micah Mainala，Umiartah Munte，Karl Finke
摘要 Abstract of the Paper	We investigate the welfare effects of third-degree price discrimination by a two-sided platform that enables interaction between buyers and sellers. Sellers are heterogeneous 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, and (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 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, because of the increased buyer participation.