102248 20250619084223.0 doi 10.1063/5.0004826 sideral 118743 ART-2020-118743 eng Bauza, F. Universidad de Zaragoza (orcid)0000-0002-8306-221X Fear induced explosive transitions in the dynamics of corruption 2020 Access copy available to the general public Unrestricted In this article, we analyze a compartmental model aimed at mimicking the role of imitation and delation of corruption in social systems. In particular, the model relies on a compartmental dynamics in which individuals can transit between three states: honesty, corruption, and ostracism. We model the transitions from honesty to corruption and from corruption to ostracism as pairwise interactions. In particular, honest agents imitate corrupt peers while corrupt individuals pass to ostracism due to the delation of honest acquaintances. Under this framework, we explore the effects of introducing social intimidation in the delation of corrupt people. To this aim, we model the probability that an honest delates a corrupt agent as a decreasing function of the number of corrupt agents, thus mimicking the fear of honest individuals to reprisals by those corrupt ones. When this mechanism is absent or weak, the phase diagram of the model shows three equilibria [(i) full honesty, (ii) full corruption, and (iii) a mixed state] that are connected via smooth transitions. However, when social intimidation is strong, the transitions connecting these states turn explosive leading to a bistable phase in which a stable full corruption phase coexists with either mixed or full honesty stable equilibria. To shed light on the generality of these transitions, we analyze the model in different network substrates by means of Monte Carlo simulations and deterministic microscopic Markov chain equations. This latter formulation allows us to derive analytically the different bifurcation points that separate the different phases of the system. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.642 2020 PHYSICS, MATHEMATICAL 4 / 55 = 0.073 2020 Q1 T1 MATHEMATICS, APPLIED 13 / 265 = 0.049 2020 Q1 T1 0.97 2020 Applied Mathematics 2020 Q1 Mathematical Physics 2020 Q1 Statistical and Nonlinear Physics 2020 Q1 Physics and Astronomy (miscellaneous) 2020 Q1 Medicine (miscellaneous) 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Soriano-Panos, D. Universidad de Zaragoza (orcid)0000-0002-6388-4056 Gomez-Gardenes, J. Universidad de Zaragoza (orcid)0000-0001-5204-1937 Floria, L.M. Universidad de Zaragoza (orcid)0000-0003-4479-8360 2004 398 Universidad de Zaragoza Dpto. Física Teórica Área Física de la Tierra 2004 405 Universidad de Zaragoza Dpto. Física Teórica Área Física Teórica 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 30, 6 (2020), 063107 [11 pp.] Chaos CHAOS 1054-1500 2793362 http://zaguan.unizar.es/record/102248/files/texto_completo.pdf Versión publicada 2594174 http://zaguan.unizar.es/record/102248/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:102248 articulos driver 2025-06-19-08:41:25 ARTICLE