讲座主题：Market Segmentation through Information

主讲嘉宾：李文号 香港大学商学院

讲座时间：2026年3月27日周五14:00-16:00

讲座地点：腾讯会议640-830-007

嘉宾简介：李文号，香港大学商学院助理教授，美国宾州州立大学经济学博士，研究领域为信息经济学。他的论文在RandJournal of Economics上接受待发表。

内容摘要：We explore the power that precise information about consumers' preferences grants an intermediary in shaping competition. We think of an intermediary as an information designer who chooses what information to reveal to firms, which then compete \`a la Bertrand in a differentiated product market. We characterize the information designs that maximize consumer and producer surplus, showing how information can be used to segment markets to intensify or soften competition. Our analysis demonstrates the power that users' data can endow intermediaries with, and speaks directly to current regulatory debates of digital marketplaces.