Managers are very interested in word of mouth communication because they believe that a product's success is related to the word of mouth that it generates. However, there are at least three significant challenges associated with measuring word of mouth. First, how does one even gather the data?...

We ask whether online opinions impact consumers' decision quality and assess whether this impact occurs immediately or requires one to undergo learning first. We focus on a setting where consumers have multiple learning experiences using opinions from both uni- and bi-directional network ties....

Understanding how opinions are received and evaluated is important for an online community because the volume and quality of user opinions are key determinants of success. In this paper, we investigate how a reputation system affects peer evaluations in an online community. In contrast to...