Xenophobia based on a few attributes can impede society's cohesiveness
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918068025819136 |
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| author | Castro, Alejandro Pham, Tuan Minh Ortega, Ernesto Machado, David |
| author_facet | Castro, Alejandro Pham, Tuan Minh Ortega, Ernesto Machado, David |
| contents | Xenophobic interactions play a role as important as homophilic ones in shaping many dynamical processes on social networks, such as opinion formation, social balance, or epidemic spreading. In this paper, we use belief propagation and Monte Carlo simulations on tree-like signed graphs to predict that a sufficient propensity to xenophobia can impede a consensus that would otherwise emerge via a phase transition. As the strength of xenophobic interactions and the rationality of individuals with respect to social stress decrease, this transition changes from continuous to discontinuous, with a strong dependence on the initial conditions. The size of the parameter region where consensus can be reached from any initial condition decays as a power-law function of the number of discussed topics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_18513 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Xenophobia based on a few attributes can impede society's cohesiveness Castro, Alejandro Pham, Tuan Minh Ortega, Ernesto Machado, David Physics and Society Disordered Systems and Neural Networks Xenophobic interactions play a role as important as homophilic ones in shaping many dynamical processes on social networks, such as opinion formation, social balance, or epidemic spreading. In this paper, we use belief propagation and Monte Carlo simulations on tree-like signed graphs to predict that a sufficient propensity to xenophobia can impede a consensus that would otherwise emerge via a phase transition. As the strength of xenophobic interactions and the rationality of individuals with respect to social stress decrease, this transition changes from continuous to discontinuous, with a strong dependence on the initial conditions. The size of the parameter region where consensus can be reached from any initial condition decays as a power-law function of the number of discussed topics. |
| title | Xenophobia based on a few attributes can impede society's cohesiveness |
| topic | Physics and Society Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2506.18513 |