研討日期	2023年10月2日12:10~ 13:50
研討地點	國立臺灣大學社會科學院710會議室
主講題目 Title of the paper	The pricing of ancillary goods when selling on a platform
作者 Authors of the paper	Chun-Hui Miao
文獻出處 Journal, vol.(issue), pp	https://doi.org/10.1016/j.ijindorg.2022.102847
主講人	許至乙
參加人員	黃鴻、林燕淑、王光正、施姵全、高國峯、彭正浩、鍾暳陵、周冰瑤、Suttiwan Suwannajoi、Ayu Sasni Munte、Chisomo Mkwandah、葉定豊、Artah、Bui Dang-Long
	Firms often sell a basic good as well as an ancillary one. When selling through platforms, they pay a fee for intermediated sales. The fee structure affects the pricing of the ancillary good. Under ad valorem fees, sellers have an incentive to shift revenue to the less taxed good. A lower fee on the ancillary good may thus increase its price. As a result, removing Apple’s App Store’s payment restrictions for in-app purchases can potentially harm consumers and lower welfare. Our analysis also shows that efficient consumption of the ancillary good is achieved under a fee or tax that increases with the elasticity of demand for the good.