Title
Self-Selection And Information Role Of Online Product Reviews
Abstract
Online product reviews may be subject to self-selection biases that impact consumer purchase behavior, online ratings' time series, and consumer surplus. This occurs if early buyers hold different preferences than do later consumers about the quality of a given product. Readers of early product reviews may not successfully correct for these preference differences when interpreting ratings and making purchases. In this study, we develop a model that examines how idiosyncratic preferences of early buyers can affect long-term consumer purchase behavior as well as the social welfare created by review systems. Our model provides an explanation for the structure of product ratings over time, which we empirically test using online book reviews posted on Amazon.com. Our analysis suggests that firms could benefit from altering their marketing strategies such as pricing, advertising, or product design to encourage consumers likely to yield positive reports to self-select into the market early and generate positive word-of-mouth for new products. On the other hand, self-selection bias, if not corrected, decreases consumer surplus.
Year
DOI
Venue
2008
10.1287/isre.1070.0154
INFORMATION SYSTEMS RESEARCH
Keywords
Field
DocType
online product reviews, self-selection, consumer heterogeneity, herding
Economics,Advertising,Economic surplus,Herding,Product reviews,Product design,Marketing,Social Welfare
Journal
Volume
Issue
ISSN
19
4
1047-7047
Citations 
PageRank 
References 
234
16.46
4
Authors
2
Search Limit
100234
Name
Order
Citations
PageRank
Xinxin Li141237.92
Lorin M. Hitt22426223.11