摘要
为了探讨前景理论能否解释花生瓣形效应(一种风险倾向随决策所涉金额大小而发生变化的效应),研究构建了4个风险概率结构相同但金额大小不同的一系列决策任务,并同时设计两种不同角度的参照点探测任务,以考察博弈活动所花时间的价值或获得情境下对获得的一般期望值能否作为前景理论的参照点,进而使得花生瓣形效应为前景理论所解释。结果发现,以一般期望值为参照点时,前景理论可以对花生瓣形效应作出比较好的解释,但博弈活动所花时间价值不可。
In order to test whether prospect theory can interpret the peanut effect or not, we conducted a series of decision tasks different in magnitude of payoff only and a research about differences between how much the value of time the subject would like to spend in the decision task and how much the value of payoff in each decision task, as well as a research about the differences between how much the value of the subject would be expected in an unexpected gaining condition and the value of payoff would be in each decision task. The result showed that the subjects in the small payoff decision tasks were risk seekers, but the subjects in large payoff decision tasks displayed aversion. Their behavior in decision making could be betler interpreted by prospect theory when the value of the subject which would be expected in an unexpected gaining condition Was used as the reference point.
出处
《心理科学》
CSSCI
CSCD
北大核心
2010年第1期126-129,117,共5页
Journal of Psychological Science
基金
国家自然科学基金青年科学基金项目(30800297)
高等学校省级优秀青年人才基金项目(2009SQRS025)
安徽师范大学专项基金项目(2009xzx02)资助
属安徽师范大学学校心理学创新团队建设成果
关键词
花生瓣形效应
前景理论
时间
期望
peanut effect, prospect theory, the value of time, The value of expectation
