Cited by 69Opinion Dynamics and Social InfluenceComplex Network Analysis TechniquesComplex Systems and Time Series Analysis

Group interactions modulate critical mass dynamics in social convention

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Iacopini, Iacopo, Petri, Giovanni, Baronchelli, Andrea, Barrat, Alain·2022·Communications Physics

Abstract

How can minorities of individuals overturn social conventions? The theory of critical mass states that when a committed minority reaches a critical size, a cascade of behavioural changes can occur, overturning apparently stable social norms. Evidence comes from theoretical and empirical studies in which minorities of very different sizes, including extremely small ones, manage to bring a system to its tipping point. Here, we explore this diversity of scenarios by introducing group interactions as a crucial element of realism into a model for social convention. We find that the critical mass necessary to trigger behaviour change can be very small if individuals have a limited propensity to change their views. Moreover, the ability of the committed minority to overturn existing norms depends in a complex way on the group size. Our findings reconcile the different sizes of critical mass found in previous investigations and unveil the critical role of groups in such processes. This further highlights the importance of the emerging field of higher-order networks, beyond pairwise interactions.

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  • Social norms can be changed by a few deviants or cultural leaders.

    “More specifically, it has been shown that a population’s opinion can be influenced by a few “stubborn individuals”77, and social norms can be changed by a few deviants or cultural leaders78–80.”

    From Cooperation without punishment (2023) · cites this paper as [80]

    The Abstract and Discussion say that very small committed minorities can overturn social norms; the Discussion gives an example involving a single individual. The paper does not identify these individuals as cultural leaders, and says the individual in its example has no special power or wealth. The claim is supported as to a few people changing norms, but not as to their being cultural leaders. (LLM, conf=0.82)

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3 of the 90 references couldn’t be matched to a known paper.

Research works printed but not linked: 4

  1. Grey, S. Numbers and beyond: the relevance of critical mass in gender research. Politics Gend. 2, 492 (2006).
  2. Kelley, H. H. & Lamb, T. W. Certainty of judgment and resistance to social influence. J. Abnorm. Psychol. 55, 137 (1957).
  3. Jenness, A. The role of discussion in changing opinion regarding a matter of fact. J. Abnorm. Psychol. 27, 279 (1932).
  4. Kooti, F., Yang, H., Cha, M., Gummadi, K. & Mason, W. The emergence of conventions in online social networks. In Proceedings of the International AAAI Conference on Web and Social Media, vol. 6 (2012).

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Authors
Iacopini, I., Petri, G., Baronchelli, A., & Barrat, A.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Institute for Scientific Interchange (IT)
  • University of London (GB)
  • Tokyo Institute of Technology (JP)
Venue
Communications Physics
Published
2022-03-18
Volume
5
Issue
1
Pages
64
ISSN
2399-3650 (ISSN-L)
OpenAlex
W3210401123
Cited by
69
References
90
Citations by year
2026: 16 · 2025: 19 · 2024: 17 · 2023: 13 · 2022: 4
FWCI
5.00
Type
journal article
Language
en
Open access
Locations
  • Communications Physics (publishedVersion, cc-by)
  • City Research Online (City University London) (acceptedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • HAL (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • arXiv (Cornell University)
Funders
  • Agence Nationale de la Recherche (ANR-19-CE46-0008)
  • James S. McDonnell Foundation
  • Intesa SanPaolo Innovation center
  • MEXT | Japan Society for the Promotion of Science (20H04288)
Topics
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Opinion Dynamics and Social Influence
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Complex Network Analysis Techniques
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Complex Systems and Time Series Analysis
Keywords
critical mass, social conventions, social norms, minority influence, tipping points, group interaction, higher-order networks, behavior change, group size

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