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          【1083期】4月20日微觀經濟學學術研討會: Data-Driven Mergers and Personalization (從佳佳,講師,復旦大學)

          時間:2021-04-12

          【主題】Data-Driven Mergers and Personalization

          【報告人】從佳佳(講師,復旦大學)

          【時間】2021420日 星期二 14:3016:00

          【地點】經濟學院701會議室

          【摘要】Recent years have seen growing cases of data-driven tech mergers such as Google/Fitbit, in which a dominant digital platform acquires a relatively small firm possessing a large volume of consumer data. The digital platform can consolidate the consumer data with its existing data set from other services and use it for personalization in related markets. We develop a theoretical model to examine the impact of such mergers across the two markets that are related through a consumption synergy. The merger links the markets for data collection and data application, through which the digital platform can leverage its market power and hurt competitors in both markets. Personalization can lead to exploitation of some consumers in the market for data application. But insofar as competitors remain active, the merger increases total consumer surplus in both markets by intensifying competition. When the consumption synergy is large enough, the merger can result in monopolization of both markets, leading to further consumer harm when stand-alone competitors exit in the long run. Thus there is a trade-off where potential dynamic costs can outweigh static benefits. We also discuss policy implications by considering various merger remedies.


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