Parker Andrew M, de Bruin Wändi Bruine, Yoong Joanne, Willis Robert
RAND Corporation, Pittsburgh, PA.
J Behav Decis Mak. 2012 Oct 1;25(4):382-389. doi: 10.1002/bdm.745. Epub 2011 Jun 15.
Financial decisions about investing and saving for retirement are increasingly complex, requiring financial knowledge and confidence in that knowledge. Few studies have examined whether direct assessments of individuals' confidence are related to the outcomes of their financial decisions. Here, we analyzed data from a national sample recruited through RAND's American Life Panel (ALP), an internet panel of U.S. adults aged 18 to 88. We examined the relationship of confidence with self-reported and actual financial decisions, using four different tasks, each performed by overlapping samples of ALP participants. The four tasks were designed by different researchers for different purposes, using different methods to assess confidence. Yet, measures of confidence were correlated across tasks, and results were consistent across methodologies. Confidence and knowledge showed only modest positive correlations. However, even after controlling for actual knowledge, individuals with greater confidence were more likely to report financial planning for retirement and to successfully minimize fees on a hypothetical investment task. Implications for the role of confidence (even if it is unjustified) in investment behavior is discussed.
关于为退休进行投资和储蓄的财务决策日益复杂,这需要财务知识以及对这些知识的信心。很少有研究考察过对个人信心的直接评估是否与他们的财务决策结果相关。在此,我们分析了通过兰德美国生活面板(ALP)招募的全国样本数据,ALP是一个由18至88岁美国成年人组成的互联网面板。我们使用四项不同任务,通过ALP参与者的重叠样本进行操作,研究了信心与自我报告的以及实际的财务决策之间的关系。这四项任务由不同的研究人员出于不同目的设计,采用不同方法评估信心。然而,信心指标在各项任务之间具有相关性,并且结果在不同方法之间保持一致。信心和知识仅呈现出适度的正相关。然而,即使在控制了实际知识之后,信心更强的个体更有可能报告为退休进行财务规划,并且在一项假设投资任务中更有可能成功将费用降至最低。本文讨论了信心(即使没有根据)在投资行为中的作用。