Seminar Calendar, Marketing
Learning from Online Ratings
31 May, 2024 | 10:30 a.m. - 12:00 p.m.
KK 910, K. K. Leung Building, HKU
SPEAKER
Prof. Xiang Hui
Assistant Professor of Marketing
OLIN Business School
Washington University in St.Louis
ABSTRACT
Online ratings play an important role in many markets. However, how fast they can reveal seller types remains unclear. We propose a simple model of rating behavior where learning about the seller type influences the rating decision. We calibrate the model to eBay data and find that ratings can be very informative. After 25 transactions, the likelihood of correctly predicting the seller type is above 95 percent.
