Effects of Deception in Social Networks
Gerardo I\~niguez, Tzipe Govezensky, Robin Dunbar, Kimmo Kaski, Rafael, A. Barrio

TL;DR
This paper uses an agent-based model to explore how prosocial and antisocial lies differently impact social network cohesion, revealing that antisocial deception fragments networks while white lies promote integration.
Contribution
It demonstrates how different types of deception influence social network structure and cohesion through emergent properties in agent interactions.
Findings
Antisocial lying causes social network fragmentation.
White lies facilitate larger, more cohesive social networks.
Deception type influences societal structure constraints.
Abstract
Honesty plays a crucial role in any situation where organisms exchange information or resources. Dishonesty can thus be expected to have damaging effects on social coherence if agents cannot trust the information or goods they receive. However, a distinction is often drawn between prosocial lies ('white' lies) and antisocial lying (i.e. deception for personal gain), with the former being considered much less destructive than the latter. We use an agent-based model to show that antisocial lying causes social networks to become increasingly fragmented. Antisocial dishonesty thus places strong constraints on the size and cohesion of social communities, providing a major hurdle that organisms have to overcome (e.g. by evolving counter-deception strategies) in order to evolve large, socially cohesive communities. In contrast, 'white' lies can prove to be beneficial in smoothing the flow of…
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