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The Combination of Pairwise and Group Interactions Promotes Consensus in Opinion Dynamics

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  • Xiaoxuan Liu
  • Changwei Huang
  • Haihong Li
  • Qionglin Dai
  • Junzhong Yang
  • Wei Zhou

Abstract

In complex systems, agents often interact with others in two distinct types of interactions, pairwise interaction and group interaction. The Deffuant–Weisbuch model adopting pairwise interaction and the Hegselmann–Krause model adopting group interaction are the two most widely studied opinion dynamics. In this study, we propose a novel opinion dynamics by combining pairwise and group interactions for agents and study the effects of the combination on consensus in the population. In the model, we introduce a parameter α to control the weights of the two interactions in the dynamics. Through numerical simulations, we find that there exists an optimal α, which can lead to a highest probability of complete consensus and minimum critical bounded confidence for the formation of consensus. Furthermore, we show the effects of α on opinion formation by presenting the observations for opinion clusters. Moreover, we check the robustness of the results on different network structures and find the promotion of opinion consensus by α not limited to a complete graph.

Suggested Citation

  • Xiaoxuan Liu & Changwei Huang & Haihong Li & Qionglin Dai & Junzhong Yang & Wei Zhou, 2021. "The Combination of Pairwise and Group Interactions Promotes Consensus in Opinion Dynamics," Complexity, Hindawi, vol. 2021, pages 1-8, January.
    • Handle: RePEc:hin:complx:4382836
    DOI: 10.1155/2021/4382836
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    Cited by:

    1. Wang, Chaoqian & Huang, Chaochao, 2022. "Between local and global strategy updating in public goods game," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 606(C).
    2. Daniel Röchert & Manuel Cargnino & German Neubaum, 2022. "Two sides of the same leader: an agent-based model to analyze the effect of ambivalent opinion leaders in social networks," Journal of Computational Social Science, Springer, vol. 5(2), pages 1159-1205, November.

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