Ert Eyal, Yechiam Eldad
Harvard University, Boston, MA 02163, United States.
Acta Psychol (Amst). 2010 Jun;134(2):225-32. doi: 10.1016/j.actpsy.2010.02.003. Epub 2010 Mar 12.
The current research evaluates the consistency of different constructs affecting risk taking in individuals' experiential decisions across different levels of risk. Specifically, we contrast three major views concerning the psychological constructs that underlie risk taking behavior. The first is the classical economic approach which views risk as the sensitivity to differences in variance. The second is the latent-components approach suggesting the importance of sensitivity to losses and diminishing sensitivity to marginal increases in payoffs. The third approach, risk acceptance, relates to the willingness to accept probable outcomes over certainty. The results of three studies indicate that (1) Individuals do not exhibit consistency in their sensitivity to variance. (2) Consistent diminishing sensitivity is found within the gain and loss domains, but across these domains individuals seem to be consistent only when deciding between constant versus probable outcomes, suggesting that they reliably differ in their risk acceptance. (3) Risk acceptance appears to entail different psychological constructs when the decision problem involves co-occurring gains and losses.
当前的研究评估了在不同风险水平下影响个体经验性决策中冒险行为的不同结构的一致性。具体而言,我们对比了关于冒险行为背后心理结构的三种主要观点。第一种是经典经济学方法,将风险视为对方差差异的敏感性。第二种是潜在成分方法,表明对损失的敏感性和对收益边际增加的敏感性递减的重要性。第三种方法,风险接受度,涉及接受可能结果而非确定性结果的意愿。三项研究的结果表明:(1)个体对方差的敏感性不存在一致性。(2)在收益和损失领域内发现了一致的敏感性递减,但在这些领域之间,个体似乎只有在确定结果与可能结果之间进行决策时才是一致的,这表明他们在风险接受度上存在可靠差异。(3)当决策问题涉及同时出现的收益和损失时,风险接受度似乎需要不同的心理结构。