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Social contagion, inequality and mobility| title | Social contagion, inequality and mobility |
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| start_date | 2025/06/20 |
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| schedule | 14h |
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| online | no |
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| location_info | salle A4-32 |
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| summary | People are transformed, and social hierarchy is shaped, by social interactions. A contagion model, inspired by a classical model of pandemic propagation, is proposed to describe this phenomenon. Two main contributions are made in this paper. First, a taxonomy of social interactions is proposed, based on the transition probabilities depicting social interactions. In particular, a simple characterization of competition and cooperation emerges, alongside a few other archetypal interactions. Second, the relation between the type of interaction and various properties of the social dynamics (stability and uniqueness) and steady state (inequality, mobility, welfare) is studied. Pandemic-like waves and unstable steady states can occur. More interestingly, the various types of interactions stand in complex relations regarding their outcomes in terms of inequality, mobility, welfare. Additionally, the intensity of social contacts has a non-monotonic influence on the social hierarchy at the steady state. |
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| responsibles | Vignes, Berestycki, Nadal |
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Workflow history| from state (1) | to state | comment | date |
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| submitted | published | | 2025/06/19 09:51 UTC |
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