中国科学院心理研究所机构知识库

决策是对行为的选择——选择做什么或者不做什么，是人类的高级认知活动之一。风险决策特指决策者在对未来情况不完全确定、但是确知各种决策后果以及各种后果出现概率情况下的决策。人们如何进行风险决策，一直是经济学和心理学非常关心的未解之谜。本文尝试从有限理性的角度，分析“齐当别”抉择模型是如何理解、解释人们的风险决策过程，并讨论了“最终的决策只能在单一维度上进行”这一决策规则在现实生活中的旨趣和寓意。

Decision making can be seen as the mental processes resulting in the selection of a course of action a mong several alternatives. Specially, a decision is said to be a risky decision if the decision maker does not know which states of nature will occur but does know their probabilities of occurring. How human minds make risky decisions effectively is one of the most prominent unsolved problems in economics and psychology. From a bounded rational perspec- tive, the present study presented how the equate-to-differentiate model interpreted the underline process of risky decision making. The implication of the rule that ＂ final decision is based on one dimension＂ in real-world settings is also de scribed and discussed.