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Published online by Cambridge University Press: 27 June 2014
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.
Target article
Strong group-level traits and selection-transmission thickets
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The cultural evolution of emergent group-level traits