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The Importance Of Disagreeing: Contrarians And Extremism In The Coda Model

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Author Info

  • ANDRÉ C. R. MARTINS

    ()
    (GRIFE–EACH, Universidade de São Paulo, Rua Arlindo Béttio, 1000, São Paulo, SP 03828-000, Brazil)

  • CLEBER D. KUBA

    (EACH, Universidade de São Paulo, Rua Arlindo Béttio, 1000, São Paulo, SP 03828-000, Brazil)

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    Abstract

    In this paper, we study the effects of introducing contrarians in a model of Opinion Dynamics where the agents have internal continuous opinions, but exchange information only about a binary choice that is a function of their continuous opinion, the CODA model. We observe that the hung election scenario that arises when contrarians are introduced in discrete opinion models still happens. However, it is weaker and it should not be expected in every election. Finally, we also show that the introduction of contrarians make the tendency towards extremism of the original model weaker, indicating that the existence of agents that prefer to disagree might be an important aspect and help society to diminish extremist opinions.

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    Bibliographic Info

    Article provided by World Scientific Publishing Co. Pte. Ltd. in its journal Advances in Complex Systems.

    Volume (Year): 13 (2010)
    Issue (Month): 05 ()
    Pages: 621-634

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    Handle: RePEc:wsi:acsxxx:v:13:y:2010:i:05:p:621-634

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    Related research

    Keywords: Opinion dynamics; extremism; hung elections;

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    Cited by:
    1. C.R. Martins, André, 2014. "Discrete opinion models as a limit case of the CODA model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 395(C), pages 352-357.

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