选择中的不可比较性和不可衡量性:没有共同的价值货币?
Lukasz Walasek1, Gordon D A Brown1
1Department of Psychology, University of Warwick.
概括
大多数决策模型都假定有一个普遍的价值尺度,但这项研究认为价值是不可衡量的. 这挑战了传统的基于实用性的方法,建议基于等级的模型来更好地代表选择.
科学领域:
- 认知心理学 认知心理学
- 行为经济学是一种行为经济学.
- 决策理论 决策理论
背景情况:
- 传统的决策模式依赖于一种共同的价值货币 (例如,公用事业) 来比较选择.
- 这种假设简化了复杂的人类选择,但可能会限制解释能力.
研究的目的:
- 挑战决策模型中普遍价值尺度的假设.
- 提出一个替代的框架,以适应不可衡量的价值和特定背景的比较.
- 探索不相称性对理性和决策模型的影响.
主要方法:
- 现有决策模式的理论分析.
- 开发一个基于"覆盖价值"的概念框架,用于不可衡量的选项.
- 使用经济定理 (箭头的不可能定理) 和认知原则,检查后果.
主要成果:
- 证明日常选择中普遍存在不可衡量的价值观,使通用价值尺度不足.
- 建议使用与目标或状态相关的特定,非普遍的"覆盖值"来比较选择.
- 强调放弃共同货币假设需要基于等级和启发式模型,与基于实用性的方法形成对比.
结论:
- 现有的经济和心理决策模式在根本上受到共同货币假设的限制.
- 价值的不可衡量性与人类决策和基于等级的价值编码的不一致性密切相关.
- 开发单一量最大化决策模型可能是不可能的,如果不考虑不相称性.
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