Dresden 2017 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 2: Social Systems I
SOE 2.1: Vortrag
Montag, 20. März 2017, 10:00–10:15, GÖR 226
How smoking became uncool: clustered marginalization of minorities during social transitions — •Jonathan F. Donges1,2, Carl-Friedrich Schleussner1,3, Denis A. Engemann4, and Anders Levermann1 — 1Potsdam Institute for Climate Impact Research, Potsdam, Germany — 2Stockholm Resilience Centre, Stockholm, Sweden — 3Climate Analytics, Berlin, Germany — 4Cognitive Neuroimaging Unit, CEA DRF/I2BM, INSERM, Université Paris-Sud, Université Paris-Saclay, NeuroSpin center, Gif/Yvette, France
Large-scale transitions in societies are associated with both individual behavioural change and restructuring of the social network. These two factors have often been considered independently, yet recent advances in social network research challenge this view. Here we show that empirically observed societal marginalization and clustering of minorities emerge naturally during social transitions in a co-evolutionary adaptive network model. This is achieved by explicitly considering the interplay between individual interaction and a dynamic network structure in behavioural selection. We exemplify this mechanism by simulating how smoking behaviour and the network structure are reconfigured by changing social norms. Our results are consistent with empirical findings: The prevalence of smoking was reduced, remaining smokers were preferentially connected among each other and formed increasingly marginalized clusters. We show that self-amplifying feedbacks between individual behaviour and dynamic restructuring of the network are the main drivers of the transition.