چکیده (انگلیسی):

Online product reviews are important information sources in the consumer decision-making process. Despite the importance of online reviews in product evaluation, there is an emerging need to address the role of self-generated and system-generated information in enhancing the credibility of online reviews. Two experiments were conducted to examine the topic. Study 1 found significant interactions between perceived similarity and source reputation on the evaluation of trustworthiness and expertise. Study 2 extended the findings of study 1 by examining how argument quality influenced credibility perception under different levels of similarity and source reputation.