UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Author: search.filters.author.Zhao, XindiSubject: search.filters.subject.product reviews

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    ESSAYS ON THE IMPACT OF ELECTRONIC WORD-OF-MOUTH DYNAMICS ON CONSUMER BEHAVIOR
    (2022) Zhao, Xindi; Trusov, Michael; Business and Management: Marketing; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Recognizing the importance of product reviews for product sales in online retail platforms, this dissertation studies the effect of electronic word-of-mouth (e-WOM) dynamics on consumer behavior, including information processing, review-reading behavior, product evaluation, purchase decision, and reviewing behavior. In the first essay, I focus on incentivized reviews, which are posted by reviewers who received economic incentives (e.g., free product) from the firm, and explore how their emergence in a reviewing system influences subsequent organic (i.e., nonincentivized) review contributions for the focal product. I find that the ratings of subsequent organic reviews decrease after the appearance of incentivized reviews and that the magnitude of this negative impact decreases over time and the ratings recover in the long run. This is because subsequent reviewers adjust their product evaluations downwards when faced with priorincentivized reviews. In the second essay, I study the effect of a prevalence phenomenon— repetition in e-WOM—on consumer behavior. I demonstrate that high repetition in e-WOM could have a negative effect on persuasion and that this negative effect could be eliminated by modifying consumers’ inferences about the cause of repetition. Furthermore, consumers’ information-seeking behaviors are also affected by the share and type of repetition. Both essays provide an understanding of the impact of e-WOM on consumers’ judgments and decisions and offer implications for firms and platforms on how to gather, manage, and display e-WOM effectively; they also provide interesting avenues for future research.