报告人（单位）

王树婷(City University of New York)

主持人（单位）

陈静（h片 ）

时间

地点

2025年8月1日上午10点

九龙湖校区经管楼B201

报告摘要和内容：

Social media platforms aggressively compete for the participants who create content on their sites. In this study, we delve into one tactic of this competition which has become increasingly popular but received limited scholarly attention—the extension of length limits (i.e., the maximum number of characters in a post)—and how it affects both the production and consumption of social media posts. We investigate these questions by exploiting a natural experiment, the phased rollout of length limit extensions on a leading Chinese microblog platform. Findings suggest that extending length limits significantly increased the number of daily posts of individual users. However, and strikingly, only already active users appear to post more after the extension, with little observed change from less active users. Further, results show that extending length limits increases the number of likes each post receives, indicating extensions improve content quality and may increase engagement in the long term. This suggests that by permitting longer posts, social media platforms can facilitate engagement from both the post generators and audiences. However, findings also suggest that extending length limits risks further concentrating content generation from the “vocal minority,” thereby making the “silent majority” less visible on the platforms.

报告人简介：

Professor Shuting (Ada) Wang is currently employed at Baruch College, City University of New York, in the Department of Information Systems. She earned her Ph.D. in Management Information Systems from Temple University, with Presidential Fellowship for Excellence in Academics. Her research focuses on fake news on social media, platform economies, online health, etc., using econometrics, sentiment analysis, and field experiments. She has published in top journals like Management Science and MIS Quarterly. Before earning her PhD, Dr. Wang served as a management trainee at JD.com, a leading e-commerce company in China. She currently provides consulting services to several companies, including Belle International (the largest shoe retailer in China) and XiangDao (a startup offering e-learning programs on social media platforms). Her research has been mentioned by NPR, Campaign US, Technical.ly, BizPhilly, and Philly Voice.