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arXiv · 2607.06803

Unified Framework for Binary-Choice Dynamics: Analysis and Applications

Arkadiusz Jędrzejewski·José F. F. Mendes
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Abstract

We demonstrate how the unified framework for binary-choice dynamics can be used to study the role of annealed and quenched disorders in homogeneous and heterogeneous systems. The framework defines the structure of interactions between agents without imposing their functional forms. Such a high level of generality allows us to connect many different models across disciplines and find universal rules that apply to all of them. Within this framework, agents update their states under the influence of two competing mechanisms chosen according to individual preferences. We review the literature to classify existing models as homogeneous or heterogeneous based on their preference distribution, and we discuss the role of annealed (changing) and quenched (fixed) disorders in modeling these preferences. Using the framework, we derive a constraint on the transition rates. When a model meets this condition, three major things happen: annealed and quenched dynamics become equivalent, any heterogeneous system can be mapped into a homogeneous one, and oscillations cannot emerge. We illustrate these consequences using models from statistical physics, opinion dynamics, and disease spreading. Finally, we discuss the framework limitations and its potential further developments.

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Arkadiusz Jędrzejewski, José F. F. Mendes. 2026-07-07. Unified Framework for Binary-Choice Dynamics: Analysis and Applications. https://arxiv.org/abs/2607.06803

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