Journal
BEHAVIOURAL PROCESSES
Volume 161, Issue -, Pages 108-116Publisher
ELSEVIER
DOI: 10.1016/j.beproc.2017.11.015
Keywords
Identity signaling; Covert signaling; Cultural evolution; Coordination; Evolution of cooperation; Group-level traits
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I discuss the function of social identity signaling in facilitating cooperative group formation, and how the nature of that function changes with the structure of social organization. I propose that signals of social identity facilitate assortment for successful coordination in large-scale societies, and that the multidimensional, context-dependent nature of social identity is crucial for successful coordination when individuals have to cooperate in different contexts. Furthermore, the structure of social identity is tied to the structure of society, so that as societies grow larger and more interconnected, the landscape of social identities grows more heterogeneous. This discussion bears directly on the need to articulate the dynamics of emergent, ephemeral groups as a major factor in human cultural evolution.
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