Berlin 2024 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 16: Social Systems, Opinion and Group Dynamics
SOE 16.2: Vortrag
Mittwoch, 20. März 2024, 15:45–16:00, MA 001
The dynamics of public and private opinions as interacting complex contagions — •Barbara Kaminska1, Arkadiusz Jedrzejewski2, and Katarzyna Sznajd-Weron1 — 1Wrocław University of Science and Technology — 2CY Cergy Paris Université
Human decision-making and the process of opinion formation are inherently complex. This process involves two distinct levels: the external, where opinions are openly expressed, and the internal, where beliefs are privately held. These levels are shaped by a dynamic interplay between independent choices, social interactions as well as their mutual impact, akin to the concept of interacting complex contagions. Previous research, grounded in agent-based modeling, has explored this interplay primarily by considering how publicly expressed views depend on private beliefs. In this work, we extend this investigation to consider mutual interactions between opinions at the public and private levels. The main objective of this study is to assess the impact of self-confirmation and the desire to reduce cognitive dissonance, the misalignment between internal and external opinions. This also means exclusion of self-anticonformity, a factor present in our previous work. Through Monte Carlo simulations and analytical analysis, we demonstrate that a model without self-anticonformity supports the emergence of social hysteresis, a form of collective memory closely linked to delays in responding to changing external conditions. The results obtained in this work show also that self-anticonformity can foster agreement among agents, aligning with similar results from various other models.
Keywords: opinion dynamics; interacting complex contagion; agent-based modeling; public and private opinions