讲座系列：数字经济与数字贸易理论与实践系列讲座第5场（学科发展系列讲座总期第97场）
讲座人： 杜前舟 （中国科学技术大学管理科学系）
时间：2025年10月24日（周五）10:30-12:00
地点：博学楼1220
主持人：屈启兴（对外经贸大学国际经济贸易学院电子商务学系教授）
讲座题目：Social Media Moderation and Content Generation: Evidence from User Bans
讲座摘要：The rise of inappropriate content （e.g., misinformation, spam, hate speech, etc.） has become a major concern for social media platforms. To deal with such challenges, platforms adopt various strategies to moderate the content on their websites. This study focuses on user bans, a common but controversial moderation strategy that suspends rule-violating users from further participation on the platform for a predetermined period. Specifically, we investigate the impacts of user bans on banned users’ content-generating behavior （both quantity and quality）. Leveraging the reactance theory, we formalize our hypotheses relating users’ behavioral reactions to such content moderation strategy. We implement multiple empirical designs to analyze data from a major social media platform. Our results show that users provide more answers on average after bans are lifted. In contrast, we find that the quality of the content （measured by linguistic features as well as content appropriateness） decreases after user bans. Furthermore, we find that platform recognitions, such as badges and recommendations, alleviate individuals’ reactance toward bans. Specifically, users who have received platform recognitions would reduce inappropriate postings and improve the quality of their content after bans. Lastly, we explore the heterogeneous effects of user bans for different banning causes and repeated bans. Our research is among the first to evaluate the effectiveness of user bans and has important implications for content moderation on social media.
主讲人简介：
杜前舟，2023年9月加入中国科学技术大学管理科学系（特任副教授）。2019年9月-2023年8月期间，任职于南京大学商学院市场营销与电子商务系（助理教授）。2019年6月，于弗吉尼亚理工大学潘普林商学院商业信息技术系获得博士学位。主要研究方向包括：社交媒体分析，金融科技，群体智慧，文本挖掘，以及开放创新。相关研究成果发表于MIS Quarterly, Production and Operations Management, Journal of Management Information Systems, PNAS Nexus, Journal of the Association for Information Science and Technology, Information Systems Journal, Tourism Management, Information Processing and Management, Expert Systems With Applications, Industrial Management & Data Systems, and International Journal of Hospitality Management等期刊。担任过Information Systems Research, Production and Operations Management, Journal of Management Information Systems, Tourism Management, Information & Management, Decision Support Systems, Decision Science, Electronic Commerce Research and Applications, Internet Research, Information Technology and Management, Information Processing and Management, 以及Information Systems Journal等期刊的审稿人。此外，还担任过ICIS、PACIS 等国际会议的Track AE。
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