IDEAS home Printed from https://ideas.repec.org/a/wut/journl/v1y2016p95-110id1203.html
   My bibliography  Save this article

A Bayesian model of group decision-making

Author

Listed:
  • Tadeusz Wibig
  • Michał Karbowiak
  • Michał Jaszczyk

Abstract

A change in the opinion of a group, treated as a network of communicating agents, caused by the accumulation of new information is expected to depend on communication within the group, cooperation and, possibly, a kind of conformity mechanism. We have developed a mathematical model of the creation of a group decision, including this effect. This is based on a Bayesian description of inference and can be used for both conscious and inattentive acts. This model can be used to study the effect of whether a leader exists or not and other group inhomogeneities, as well as establishing the (statistical) significance and quality of a group decision. The proposed evolution equations explain in a straightforward, analytical way some general properties of the general phenomenon of conformity (groupthink). To illustrate this theoretical idea in practice, we created an information technology (IT) tool to study the effect of conformity in a small group. As an example, we present results of an experiment performed using a network of students’ tablets, which could not only measure group pressure, but also conduct and control collaborative thinking in the group.

Suggested Citation

  • Tadeusz Wibig & Michał Karbowiak & Michał Jaszczyk, 2016. "A Bayesian model of group decision-making," Operations Research and Decisions, Wroclaw University of Science and Technology, Faculty of Management, vol. 26(1), pages 95-110.
    • Handle: RePEc:wut:journl:v:1:y:2016:p:95-110:id:1203
    DOI: 10.5277/ord160106
    as

    Download full text from publisher

    File URL: https://ord.pwr.edu.pl/assets/papers_archive/1203%20-%20published.pdf
    Download Restriction: no
    File URL: https://libkey.io/10.5277/ord160106?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. E. Katzoff, 1942. "The measurement of conformity," Psychometrika, Springer;The Psychometric Society, vol. 7(1), pages 31-42, March.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Kapil Mittal & Puran Chandra Tewari & Dinesh Khanduja, 2017. "On the right approach to selecting a quality improvement project in manufacturing industries," Operations Research and Decisions, Wroclaw University of Science and Technology, Faculty of Management, vol. 27(1), pages 105-124.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.

      Corrections

      All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wut:journl:v:1:y:2016:p:95-110:id:1203. See general information about how to correct material in RePEc.

      If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

      If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

      If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

      For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Adam Kasperski (email available below). General contact details of provider: https://edirc.repec.org/data/iopwrpl.html .

      Please note that corrections may take a couple of weeks to filter through the various RePEc services.

      IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.