Center for Adaptive Rationality, Max Planck Institute for Human Development, Lentzeallee 94, 14195, Berlin, Germany.
University of Leipzig, Leipzig, Germany.
Sci Rep. 2020 Sep 21;10(1):15365. doi: 10.1038/s41598-020-72077-5.
People differ in their willingness to take risks. Recent work found that revealed preference tasks (e.g., laboratory lotteries)-a dominant class of measures-are outperformed by survey-based stated preferences, which are more stable and predict real-world risk taking across different domains. How can stated preferences, often criticised as inconsequential "cheap talk," be more valid and predictive than controlled, incentivized lotteries? In our multimethod study, over 3,000 respondents from population samples answered a single widely used and predictive risk-preference question. Respondents then explained the reasoning behind their answer. They tended to recount diagnostic behaviours and experiences, focusing on voluntary, consequential acts and experiences from which they seemed to infer their risk preference. We found that third-party readers of respondents' brief memories and explanations reached similar inferences about respondents' preferences, indicating the intersubjective validity of this information. Our results help unpack the self perception behind stated risk preferences that permits people to draw upon their own understanding of what constitutes diagnostic behaviours and experiences, as revealed in high-stakes situations in the real world.
人们在承担风险的意愿上存在差异。最近的研究发现,揭示偏好任务(例如实验室彩票)——一种主要的衡量标准——表现不如基于调查的陈述偏好,后者更稳定,并能预测不同领域的现实世界风险承担。陈述偏好,通常被批评为无关紧要的“廉价谈话”,怎么会比受控制的、有激励的彩票更有效和具有预测性呢?在我们的多方法研究中,来自人群样本的 3000 多名受访者回答了一个单一的、广泛使用和预测性的风险偏好问题。然后,受访者解释了他们回答的理由。他们倾向于叙述诊断行为和经验,重点是自愿的、有后果的行为和经验,他们似乎从这些行为和经验中推断出自己的风险偏好。我们发现,受访者简短记忆和解释的第三方读者也对受访者的偏好做出了类似的推断,这表明了这种信息的主体间有效性。我们的研究结果有助于揭示陈述风险偏好背后的自我认知,这种认知允许人们利用自己对构成诊断行为和经验的理解,这些行为和经验在现实世界中的高风险情况下得到了体现。