Positive confirmation bias in the acquisition of information

Martin Jones, Robert Sugden

    Research output: Working paperDiscussion paper

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    Abstract

    An experiment is reported which tests for positive confirmation bias in a setting in which individuals choose what information to buy, prior to making a decision. The design – an adaptation of Wason’s selection task – reveals the use that subjects make of information after buying it. Strong evidence of positive confirmation bias, in both information acquisition and information use, is found; and this bias is found to be robust to experience. It is suggested that the bias results from a pattern of reasoning which, although producing sub-optimal decisions, is internally coherent and which is self-reinforcing.
    Original languageEnglish
    PublisherUniversity of Dundee
    Publication statusPublished - 2000

    Publication series

    NameDundee Discussion Papers in Economics
    PublisherUniversity of Dundee
    No.115
    ISSN (Print)1473-236X

    Keywords

    • Positive confirmation bias
    • Selection task
    • Information acquisition

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  • Research Output

    Positive confirmation bias in the acquisition of information

    Jones, M. & Sugden, R., 2001, In : Theory and Decision. 50, 1, p. 59 99 p.

    Research output: Contribution to journalArticle

  • 57 Citations (Scopus)

    Cite this

    Jones, M., & Sugden, R. (2000). Positive confirmation bias in the acquisition of information. (Dundee Discussion Papers in Economics; No. 115). University of Dundee.