Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures

With the advent of modern media platforms, the dissemination of information has become faster and more far-reaching than ever before. These platforms amplify susceptibility to societal influences, as individuals respond to widely circulating information while being shaped by the perspectives of thos...

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Main Authors: Kanako Shibata, Isamu Okada
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-04-01
Series:Frontiers in Physics
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Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2025.1551215/full
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author Kanako Shibata
Isamu Okada
author_facet Kanako Shibata
Isamu Okada
author_sort Kanako Shibata
collection DOAJ
description With the advent of modern media platforms, the dissemination of information has become faster and more far-reaching than ever before. These platforms amplify susceptibility to societal influences, as individuals respond to widely circulating information while being shaped by the perspectives of those around them. By aligning with others’ opinions, individuals contribute to establishing shared norms through both macroscopic and microscopic influences. This paper explores the roles of these influences—social conformity at the population-wide level and peer pressure at the localized level—in shaping opinion dynamics within today’s information-rich environment. Building on the Hegselmann-Krause opinion dynamics model, we introduce modifications to incorporate peer pressure through three modes of dynamic social circles. While conformity and peer pressure have been studied previously, we focus specifically on how properties and behaviors evolve in an opinion-dependent manner from both individual and social circle perspectives. Furthermore, we incorporate radical agents, characterized by resistance to influence. However, unlike radicals as referred to the stubborn agents commonly discussed in previous literature, our radical agents adjust their behavior based on their position in the opinion spectrum rather than remaining entirely fixed in their views. Simulations reveal that removing agents with distant opinions from social circles facilitates population convergence more than adding agents with similar opinions. Our model suggests that increasing the number of agents within social circles accelerates opinion shifts. Similarly, broadening confidence bounds fosters cluster formation. In addition, a higher initial number of radical agents makes it more likely for non-radical agents to adopt radical views. Likewise, when agents are influenced more by macroscopic rather than microscopic forces, radicalization becomes more likely. Together, one or more of these dynamics drive convergence between radical and non-radical agents.
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spelling doaj-art-a59bbe8f3344401cb596c1e094e1d07f2025-08-20T01:54:19ZengFrontiers Media S.A.Frontiers in Physics2296-424X2025-04-011310.3389/fphy.2025.15512151551215Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structuresKanako Shibata0Isamu Okada1Department of Mathematical Sciences Based on Modeling and Analysis, Graduate School of Advanced Mathematical Sciences, Meiji University, Nakano, Tokyo, JapanDepartment of Business Administration, Soka University, Tokyo, JapanWith the advent of modern media platforms, the dissemination of information has become faster and more far-reaching than ever before. These platforms amplify susceptibility to societal influences, as individuals respond to widely circulating information while being shaped by the perspectives of those around them. By aligning with others’ opinions, individuals contribute to establishing shared norms through both macroscopic and microscopic influences. This paper explores the roles of these influences—social conformity at the population-wide level and peer pressure at the localized level—in shaping opinion dynamics within today’s information-rich environment. Building on the Hegselmann-Krause opinion dynamics model, we introduce modifications to incorporate peer pressure through three modes of dynamic social circles. While conformity and peer pressure have been studied previously, we focus specifically on how properties and behaviors evolve in an opinion-dependent manner from both individual and social circle perspectives. Furthermore, we incorporate radical agents, characterized by resistance to influence. However, unlike radicals as referred to the stubborn agents commonly discussed in previous literature, our radical agents adjust their behavior based on their position in the opinion spectrum rather than remaining entirely fixed in their views. Simulations reveal that removing agents with distant opinions from social circles facilitates population convergence more than adding agents with similar opinions. Our model suggests that increasing the number of agents within social circles accelerates opinion shifts. Similarly, broadening confidence bounds fosters cluster formation. In addition, a higher initial number of radical agents makes it more likely for non-radical agents to adopt radical views. Likewise, when agents are influenced more by macroscopic rather than microscopic forces, radicalization becomes more likely. Together, one or more of these dynamics drive convergence between radical and non-radical agents.https://www.frontiersin.org/articles/10.3389/fphy.2025.1551215/fullopinion dynamicssocial conformitypeer pressurebounded confidence modelagent-based simulation
spellingShingle Kanako Shibata
Isamu Okada
Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures
Frontiers in Physics
opinion dynamics
social conformity
peer pressure
bounded confidence model
agent-based simulation
title Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures
title_full Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures
title_fullStr Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures
title_full_unstemmed Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures
title_short Modeling social conformity and peer pressure in opinion dynamics: the role of dynamic interaction structures
title_sort modeling social conformity and peer pressure in opinion dynamics the role of dynamic interaction structures
topic opinion dynamics
social conformity
peer pressure
bounded confidence model
agent-based simulation
url https://www.frontiersin.org/articles/10.3389/fphy.2025.1551215/full
work_keys_str_mv AT kanakoshibata modelingsocialconformityandpeerpressureinopiniondynamicstheroleofdynamicinteractionstructures
AT isamuokada modelingsocialconformityandpeerpressureinopiniondynamicstheroleofdynamicinteractionstructures