研討日期	2021年12月06日上午10:30~ 12:30
研討地點	國立臺灣大學606 討論室
主講題目 Title of the paper	Upstream horizontal mergers involving a vertically integrated firm
作者 Authors of the paper	Ioannis N. Pinopoulos
文獻出處 Journal, vol.(issue), pp	Journal of Economics (2020) 130:67–83
主講人	Ayu Sasni Munte
參加人員	Ayu Sasni Munte、林燕淑、施姵全、梁文榮、黃鴻、Dong Van Chung、Suttiwan Suwannajoi、許至乙、蘇家叡、鍾暳陵、高國峯、丁虹仁
摘要 Abstract of the paper	We study upstream horizontal mergers when one of the merging parties is vertically integrated. Under observable contracting in the pre-merger case, we show that such type of mergers always harm consumers. However, under unobservable contracting in the pre-merger case, the input price may decrease and consumer surplus may increase as a result of the merger even in the absence of exogenous cost-synergies between merging firms. A necessary condition for this finding is that the unintegrated downstream firm is more cost-efficient than the downstream division of the integrated firm.