过度自信的演变
Dominic D P Johnson1, James H Fowler
1Politics and International Relations, University of Edinburgh, Edinburgh EH8 9LD, UK. dominic.johnson@ed.ac.uk
Nature
|September 17, 2011
概括
过度自信,相信自己比现实更好,可以最大限度地提高个人的健康状况,并导致整个人口过度自信. 当资源效益超过竞争成本时,这种进化策略是稳定的.
科学领域:
- 进化生物学是进化的生物学.
- 行为经济学是一种行为经济学.
- 心理学 心理学 心理学
背景情况:
- 自信对于在许多领域取得成功至关重要.
- 过度自信或夸张的自信可能会带来诸如提高野心和坚持等优势.
- 然而,过度自信也导致了糟糕的决策,使其进化稳定性成为一个难题.
研究的目的:
- 使用基于代理的模型研究过度自信的进化稳定性.
- 确定在哪些条件下,过度自信,而不是准确的自我评估,是一种进化稳定的策略.
主要方法:
- 开发了一个演化模型,模拟了不同程度的自信 (自信和过度自信) 的种群.
- 在不同的资源竞争场景下分析了不同信念策略的健康结果和稳定性.
主要成果:
- 发现过度自信可以最大限度地提高个体健康,并在特定条件下导致进化稳定的群体.
- 准确,公正的自我信念策略在有限的环境条件下才稳定.
- 人口过度自信的普遍性与资源效益与竞争成本之间的平衡有关.
结论:
- 过度自信可能是一个进化上有利的策略,尽管有潜在的缺点,但它促进了成功.
- 这些发现有助于解释人类人口过度自信的持久性及其在各种社会现象中的作用.
- 了解过度自信的进化基础是减轻其负面后果的关键.
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