Berlin 2024 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 16: Social Systems, Opinion and Group Dynamics
SOE 16.1: Vortrag
Mittwoch, 20. März 2024, 15:30–15:45, MA 001
Modelling opinion dynamics under the impact of influencer and media strategies — •Natasa Djurdjevac Conrad1, Christof Schütte1,2, Luzie Helfmann1, and Philipp Lorenz-Spreen3 — 1Zuse Institute Berlin, Berlin, Germany — 2Freie Universität Berlin, Berlin, Germany — 3Max Planck Institute for Human Development, Berlin, Germany
In this talk, we will propose a novel agent-based model (ABM) that aims to model how individuals (agents) change their opinions under the impact of media and influencers. We will study the rich behavior of this ABM in different regimes and explore how different opinion formations can emerge, e.g. consensus and fragmentation. This framework allows for mean-field approximations by partial differential equations, which reproduce the dynamics and allow for efficient large-scale simulations when the number of individuals is large. Based on the mean-field model, we will show how strategies of influencers can impact the overall opinion distribution and that optimal control strategies allow other influencers (or media) to counteract such attempts and prevent further fragmentation of the opinion landscape.
Keywords: opinion dynamics; agent-based model; influencers; mean-field model; media