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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 2: Networks and Social Dynamics

SOE 2.6: Talk

Monday, March 22, 2021, 15:40–16:00, SOEa

Public goods games on networks: endogeneous reference groups — •Adrian Fessel¹, Martin Kocher², and Hans-Günther Döbereiner¹ — ¹Institute for Biophysics, University of Bremen, Bremen, Germany — ²Department of Economics, University of Vienna, Vienna, Austria

Public goods games are a paradigm for understanding cooperative behavior within some reference group, whereas the field of complex networks provides powerful frameworks for modeling the dynamics and structure of interactions between individual agents. Combining these approaches, we study the formation and evolution of endogeneous reference groups in a network model. Between iterations of public goods games played within each connected component, the model evolves by edge addition or removal based on expected utility. In simulations, we observe fragmented or percolated states depending on the set of parameters, as well as dynamical solutions characterized by oscillations of the network structure.