零风险偏误(Zero-risk Bias)是指在有其他方案可以降低整个风险的情形下,仍倾向于完全消除某一项风险的偏见[1]。在决策者针对健康,安全和环境问题进行决策时,特别容易出现零风险偏误[2]。不论是在假设情境和某些现实政策(例如决定反恐战争,或是要减少交通事故或枪支暴力的风险)的研究中,都有发现决策受此一偏见影响。一个例子是刻意降低个人负责领域的风险,可是代价是整个组织风险的上升[3]。
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