Plourde Aimée M
AHRC Centre for the Evolution of Cultural Diversity, Institute of Archaeology, University College London, 31-34 Gordon Square, London, WC1H 0PY, UK.
Hum Nat. 2008 Dec;19(4):374-88. doi: 10.1007/s12110-008-9050-4.
This work addresses the emergence of prestige goods, which appear with fully modern Homo sapiens but at different times in different regions. I theorize that such goods came into existence to signal the level of skill held by their owners, in order to gain deference benefits from learning individuals in exchange for access. A game theoretic model demonstrates that a signaling strategy can invade a non-signaling population and can be evolutionarily stable under a set of reasonable parameter values. Increasing competition levels were likely the selective force driving the adoption of this novel strategy. Two changes in the social context in which prestige processes operate are tentatively identified as leading to increased levels of competition for prestige: (1) increasing group sizes and (2) increasing complexity or size of the existing cultural repertoire. Implications for prestige goods' later use in social and political competition are discussed.
这项研究探讨了声望物品的出现,它们与完全现代的智人同时出现,但在不同地区出现的时间不同。我提出理论,认为此类物品的存在是为了表明其所有者所拥有的技能水平,以便从有学习需求的个体那里获得尊重,并以此换取交流机会。一个博弈论模型表明,一种信号传递策略能够侵入一个非信号传递的群体,并且在一组合理的参数值下能够在进化上保持稳定。竞争水平的提高可能是推动采用这种新策略的选择力量。初步确定,声望形成过程所发生的社会环境中的两个变化导致了对声望的竞争加剧:(1)群体规模的扩大;(2)现有文化元素库的复杂性或规模的增加。本文还讨论了声望物品在社会和政治竞争中后来的用途。