Can you Trust Online Ratings? Evidence of Systematic Differences in User Populations

Julie Wulff, Daniel Hardt

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    Do user populations differ systematically in the way they express and rate sentiment? We use large collections of Danish and U.S. reviews to investigate this question, and we find evidence of important systematic differences: first, positive ratings are far more common in the U.S. data than in the Danish data. Second, Danish reviewers tend to under-rate their own positive reviews compared to U.S. reviewers. This has potentially far-reaching implications for the interpretation of user ratings, the use of which has exploded in recent years.
    Original languageEnglish
    Title of host publicationECIS 2014 Proceedings
    EditorsMichel Avital, Jan Marco Leimeister, Ulrike Schultze
    Number of pages12
    Place of PublicationAtlanta, GA
    PublisherAssociation for Information Systems. AIS Electronic Library (AISeL)
    Publication date2014
    ISBN (Print)9780991556700
    Publication statusPublished - 2014
    Event22nd European Conference on Information Systems, ECIS 2014: Digital Work, Digital Life - David Intercontinental Hotel, Tel Aviv, Israel
    Duration: 9 Jun 201411 Jun 2014
    Conference number: 22


    Conference22nd European Conference on Information Systems, ECIS 2014
    LocationDavid Intercontinental Hotel
    CityTel Aviv
    Internet address
    SeriesProceedings of the European Conference on Information Systems

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