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Competition between private and expressed opinions in binary choice: The α-EPO q-voter model
Barbara Kamińska1, Barbara Nowak2, Arkadiusz Lipiecki1
1Wrocław University of Science and Technology, Department of Computational Social Science, Faculty of Management, Poland.
Physical Review. E
|July 24, 2026
Summary
Introducing asynchronous updating in opinion dynamics, this study reveals how the balance between private and expressed opinions, influenced by self-anticonformity, shapes collective behavior and phase transitions in social networks.
Area of Science:
- Social dynamics
- Statistical physics
- Opinion formation
Background:
- Preference falsification describes expressing views differing from private beliefs.
- Expressed-private opinion (EPO) models use private and expressed opinion variables.
- Previous models used sequential, synchronous updates for private and expressed opinions.
Purpose of the Study:
- Introduce a novel asynchronous update mechanism for EPO models.
- Quantify the interplay between private and expressed opinions.
- Investigate the role of self-anticonformity in opinion dynamics.
Main Methods:
- Developed the asynchronous α-EPO q-voter model.
- Derived mean-field theory and pair approximation.
- Validated models using Monte Carlo simulations on diverse networks.
Main Results:
- Asynchronous updating (α) impacts collective outcomes, especially without self-anticonformity.
- Self-anticonformity makes results robust to α.
- Without self-anticonformity, α alters thresholds and transition types, particularly for q=3.
Conclusions:
- The α-EPO model provides a more realistic framework for opinion dynamics.
- Self-anticonformity significantly modulates the effect of asynchronous updating.
- Network connectivity and α jointly influence hysteresis and opinion convergence.
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