群体极化、不对称优势效应及风险概率对风险偏好的影响

Effects of the Group Polarization,the Asymmetric dominance effect and the Risky Probabilities on Risk Preferences

两个实验考察了金钱和生命决策中群体极化、不对称优势效应及风险概率对风险偏好的影响。结果发现:(1)在金钱决策中,与个体决策相比,群体决策更加倾向于冒险;在增加诱导选项后,被试倾向于风险选择;在风险概率增加时,被试也倾向于风险选择;(2)在生命决策中,增加诱导选项和风险概率都会使被试倾向于风险选择,另外,个体/群体决策和风险概率、不对称优势效应和风险概率的交互作用显著。

Two experiments involving money decision and life decision were made to explore the effects of the group polarization,the asymmetric dominance effect and the risky probabilities on risk preferences.The results indicated that：（1） In money decision,groups were more daring than individuals;There were higher risk preferences in making decisions when adding a decoy option or increasing risky probabilities;（2） In life decision,risk preferences were influenced by asymmetric dominance effect and risky probabilities;Interaction effects between members of decision and risky probabilities,between asymmetric dominance effect and risky probabilities were found in life decision.