2024年秋季第四讲（总第四十四讲）
Selling Network Information
杨仁琨 助理教授
报告日期：2024年10月21日（周一）
时间地点：12:10-13:30，经济楼N308
报告语言：中文
内容提要
A data seller sells consumers' social network data, in particular, their influence (in-degree) to a monopoly firm. The firm then sells a network-good to consumers and charges personalized prices based on the purchased data. We characterize the data demand when the firm can choose the acquisition strategy: it targets the most and/or least influential consumers, depending on their relative scarcity. The data seller's optimal data pricing induces partial targeting in equilibrium, causing an efficiency loss. When the firm is restricted to random sampling, or the data provider is allowed to use nonlinear pricing, the equilibrium features full acquisition of the consumer list. The influence data thus exhibit increasing (decreasing) marginal returns when targeting is (not) prohibited.
经济学系双周学术论坛
About the Biweekly Academic Forum
为了进一步加强对传统优势学科政治经济学、经济史和经济思想史的研究交流，经济学系开展“双周学术论坛”，邀请经济学系和其他系、所、中心师生介绍前沿科研成果，为广大经济学子打造一个高品质的学术交流平台。论坛研讨方向主要突出政治经济学、经济史和经济思想史，兼容发展经济学与应用微观等方向，立足中国大地，讲好中国故事。
The Economics Biweekly Academic Forum is organized by the department of economics in Xiamen University. This forum mainly discusses the topics in the field of political economics, economic history and history of economic thought, with the aim to strengthen the communication between these traditional disciplines and the state of the art in the literature. This forum invites speakers and research students from various departments, which is a high quality platform for academic communication and research discussion. The forum also provides an excellent stage to tell Chinese economics story with precise academic language and Chinese culture.
