Social Relationships and the Emergence of Social Networks

Alistair Sutcliffe (), Di Wang () and Robin Dunbar ()
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Alistair Sutcliffe: http://www.manchester.ac.uk/research/mbs/Alistair.sutcliffe/

Journal of Artificial Societies and Social Simulation, 2012, vol. 15, issue 4, 3

Abstract: In complex social systems such as those of many mammals, including humans, groups (and hence ego-centric social networks) are commonly structured in discrete layers. We describe a computational model for the development of social relationships based on agents' strategies for social interaction that favour more less-intense, or fewer more-intense partners. A trust-related process controls the formation and decay of relationships as a function of interaction frequency, the history of interaction, and the agents' strategies. A good fit of the observed layers of human social networks was found across a range of model parameter settings. Social interaction strategies which favour interacting with existing strong ties or a time-variant strategy produced more observation-conformant results than strategies favouring more weak relationships. Strong-tie strategies spread in populations under a range of fitness conditions favouring wellbeing, whereas weak-tie strategies spread when fitness favours foraging for food. The implications for modelling the emergence of social relationships in complex structured social networks are discussed.

Keywords: Social Agents; Social Relationships; Trust; Evolution; Social Straegies (search for similar items in EconPapers)
Date: 2012-10-31
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