2nd International Conference on Social Context of Sciences

Interdisciplinarity and Technology Assessment

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Phase Diagram’ for Nowak–Szamrej–Latané Model of Opinion Dynamics

Krzysztof Malarz1 ✉️, Maciej Wołoszyn1 ✉️
1AGH University of Krakow, Poland

Cite as: Malarz, K. and Wołoszyn, M. (2025, May). 'Phase Diagram' for Nowak-Szamrej-Latané Model of Opinion Dynamics. In SCS 2025, 2nd International Conference on Social Contexts of Science (p. 23). Wrocław University of Science and Technology, Poland.

Abstract

The Nowak–Szamrej–Latané model of opinion dynamics [1] is a computerized version of the theory of social impact introduced by Latané [2]. The model control parameters ($\alpha$, T ) [3-7] describe the effective range of interactions and the social temperature, respectively. In References [3,4,5] the multitude of available opinions was introduced leading to the study of opinion dynamics in an artificial society where initially every actor presents a unique opinion, not shared with any fellow member of the same society [6,7]. With Monte Carlo simulation, we check how model control parameters influence the number of opinion observed in the system after its long evolution and how these parameters influence the time of reaching the consensus (if for given a pair of parameters responsible for effective range of interactions and social temperature, such consensus is reached). Finally, we identify the set of model parameters ($\alpha$, T ) where consensus is quite easily reached, where society polarization is the most probable outcome of the evolution, and where, even for a long time of system evolution, more than two opinions survive [8].

References
[1] A. Nowak, J. Szamrej, B. Latané, Psychological Review 97, 362 (1990) [2] B. Latané, American Psychologist 36, 343 (1981) [3] P. Bańcerowski, K. Malarz, The European Physical Journal B 92 (10), 219 (2019) [4] A. Kowalska-Styczeń, K. Malarz, Plos One 15 (7), e0235313 (2020) [5] M. Dworak, K. Malarz, Entropy 25 (1), 58 (2023) [6] K. Malarz, T. Masłyk, Physics 5 (4), 1031 (2023) [7] M. Wołoszyn, T. Masłyk, S. Pająk, K. Malarz, Chaos 34 (6), 063105 (2024) [8] K. Malarz, M. Wołoszyn, arXiv:2503.16721 [physics.soc-ph] (2025)

Keywords

Sociophysics, Opinion formation, Social impact theory, Monte carlo simulation

Current status of the research is: Under-review in a journal