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The Krause–Hegselmann Consensus Model With Discrete Opinions

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  • SANTO FORTUNATO

    (Fakultät für Physik, Universität Bielefeld, D-33501 Bielefeld, Germany)

Abstract

The consensus model of Krause and Hegselmann can be naturally extended to the case in which opinions are integer instead of real numbers. Our algorithm is much faster than the original version and thus more suitable for applications. For the case of a society in which everybody can talk to everybody else, we find that the chance to reach consensus is much higher as compared to other models; if the number of possible opinionsQ≤7, in fact, consensus is always reached, which might explain the stability of political coalitions with more than three or four parties. ForQ>7the numberSof surviving opinions is approximately the same, independent of the sizeNof the population, as long asQ

Suggested Citation

  • Santo Fortunato, 2004. "The Krause–Hegselmann Consensus Model With Discrete Opinions," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 15(07), pages 1021-1029.
    • Handle: RePEc:wsi:ijmpcx:v:15:y:2004:i:07:n:s0129183104006479
    DOI: 10.1142/S0129183104006479
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    Cited by:

    1. Shang, Lihui & Zhao, Mingming & Ai, Jun & Su, Zhan, 2021. "Opinion evolution in the Sznajd model on interdependent chains," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 565(C).

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