题   目：The  Effects of Personal Data Management on Competition and Welfare

嘉   宾：从佳佳，副教授，复旦大学管理学院

主持人：LIM XI ZHI，助理教授，上海交通大学安泰经济与管理学院

时   间：2023年3月29日（周三）12:40-14:10

地   点：上海交通大学（徐汇校区）安泰经济与管理学院A503

内容简介：

This study examines how consumers' personal  data management affects firms' competition in the data collection and data  application markets and welfare outcomes. Consumers purchase products from  differentiated firms in two markets. Firms compete to collect consumer data  first to predict their preferences in the data application market, where each  firm offers personalized prices to its targeted consumers and a uniform price  to untargeted consumers. Before firms offer prices, their targeted consumers  can erase data to become untargeted for a fixed cost. We show that consumers'  privacy management mitigates price competition, reduces firms' profits, and  harms consumer surplus and social welfare in the data application market;  privacy management intensifies competition and improves consumer surplus in  the data collection market. Across these two markets, profits and social  welfare decline. The change in consumers' two-market surplus depends on their  foresight regarding the outcomes in the data application market, with only  forward-looking consumers having a higher surplus. We extend the model in  several directions, including data-enabled product personalization, privacy  costs, data portability, and data ownership, and discuss the implications for  privacy laws.

演讲人简介：

Cong Jiajia  is an associate professor in the Department of Applied Economics, School of  Management, Fudan University. His research interests include industrial  organization theory and applied microeconomics. His work has been published in  the RAND Journal of Economics, Management Science, Journal of Economic  Behavior & Organization, and China Economic Review.

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