Degree Variance and Emotional Strategies Catalyze Cooperation in Dynamic Signed Networks
Proceedings of the European Conference on Modelling and Simulation 2014
16 Pages Posted: 25 Apr 2014
Date Written: April 24, 2014
We study the problem of the emergence of cooperation in dynamic signed networks where agent strategies coevolve with relational signs and network topology. Running simulations based on an agent-based model, we compare results obtained in a regular lattice initialization with those obtained on a comparable random network initialization. We show that the increased degree heterogeneity at the outset enlarges the parametric conditions in which cooperation survives in the long run. Furthermore, we show how the presence of sign-dependent emotional strategies catalyze the evolution of cooperation with both network topology initializations.
Keywords: evolution of cooperation, signed graphs, network dynamics, negative ties, agent-based models, degree heterogeneity
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