研討日期	2023年8月28日9:50~ 11:10
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	Social efficiency of entry in a vertically related industry revisited
作者 Authors of the paper	Hang Cao , Leonard F.S. Wang
文獻出處 Journal, vol.(issue), pp	https://doi.org/10.1016/j.econlet.2020.109200
主講人	鍾暳陵助理教授
參加人員	林燕淑、梁文榮、許至乙、彭正浩、郭文忠、吳世傑、曹古駒、蘇家叡、Suttiwan Suwannajoi、Chisomo Mkwandah、葉定豊、陳廷睿、王靖雯、施岳廷、Bui Dang Long
摘要 Abstract of the paper	We revisit the social desirability of entry in a vertical structure by showing that, if the input supplier has market power, social desirability of entry of downstream producers depends on the asymmetric marginal costs among competing firms. Under constant returns to scale, entry in the final goods market can be socially insufficient when entrants are inefficient, but it can be socially excessive if the cost of entrants is sufficiently low compared to the incumbents.