title: Strong group-level traits and selection-transmission thickets.
abstract: I suggest that we should distinguish between weak and strong group-level traits. It is the latter that are especially problematic for developing models of cultural evolution. Using Campbell's notion of vicarious selection mechanisms, I argue that these mechanisms become intertwined with other group-level traits resulting in selection-transmission thickets that are obstacles to modeling cultural evolution.
authors: Department of Psychology,University of California,Davis,Davis,CA 95616.jcschank@ucdavis.eduhttp://www.agent-based-models.com.
authors: Jeffrey C
authors: JC
authors: Schank
mesh_terms: D003299:Cooperative Behavior; D003468:Cultural Evolution; D006126:Group Processes; D006801:Humans; D012641:Selection, Genetic