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封面故事、选项框架和损益概率对风险偏好的影响
The Effects of Cover Stories, Framing, and Probability on Risk Preference in Investment Decision-Making

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孙彦 ¹ ^* 许洁虹 ¹ 陈向阳 ²

文摘	以股市投资为背景设计决策问题,考查了问题的封面故事类型、备择选项框架和风险项的概率水平对327名股民被试和465名大学生被试的风险偏好的影响.结果表明,股民被试的风险偏好不同于大学生被试,前者在所有实验处理上呈现出稳定的风险回避倾向.大学生被试在不同类型的封面故事下呈现出不同的风险偏好.在传统的坏封面故事下,风险偏好只受到备择选项框架的影响,不受损益概率的影响,即出现经典的框架效应.在好封面故事下,风险偏好受到备择选项框架、损益概率及两者交互作用的影响,即在高概率水平上出现框架效应,在低概率水平上出现框架效应反转.
其他语种文摘	When making choices, people are sensitive to the way in which the problem is presented. This sensitivity was well exemplified by the framing effect, initially described by Tversky and Kahneman (1981). In the well-known "Asian disease problem", they found that the majority were risk-averse when the options of the problem were framed positively, yet turned to be risk-seeking when the options were framed negatively. Though several studies of framing effects amply demonstrated that changes in the presentation of information would elicit potent effects on decision behavior, they were not as apt to demonstrate that these effects were due exclusively to changes from risk-averse preferences in the positive frame of options to risk-seeking preferences in the negative frame of options. In fact, researchers had found that people's risk preferences vacillated not only in response to changes in frame but also to changes in other variables such as the perceived desirability of particular social groups, the surface structure of a problem, and the individual differences (Schneider, 1992). Most of framing studies tended to use scenarios that were similar to the Asian disease problem. However, there were two limitations within this kind of materials. First, the focal problem always began with a threatening cover story, setting the whole problem in a bad situation, and then followed by a pair of options either positively framed or negatively framed. Second, the risky outcomes in these studies were all with a median probability. In order to examine whether the character of the cover story (e. g. , good vs bad) and the probability of outcomes would affect peoples risk preferences, the stock market scenarios used in the present research were designed to begin with either a good cover story or a bad one, and to be followed by outcomes with three levels of probabilities (high, median, low) respectively. Therefore, it was a 2(the cover story; good vs. bad) * 3(probabilities; high vs. median vs. low) * 2 (outcome framing: positive vs. negative) mixed design with probabilities as the within-participants variable and the other two as between-participants variables. 327 shareholders were recruited from three stock exchanges, and 465 college students were recruited from a university. Chi-square and logistic regression were performed to analyze the data. The results were as follows: (1) shareholder participants' risk preference pattern differed from college participants in that shareholder participants remained risk aversion through all the experimental treatments; (2) college participants revealed different risk preferences under different cover stories; (3) under the traditional bad cover story, framing effects were found across the three probability levels, which indicated that risk preference was affected only by the framing of options, but not by the probability; (4) under the good cover story, framing effect was found only on high probability level, but reversed when probability was low, which indicated that risk preference was affected by the framing of options, the levels of probability, and their interaction.
来源	心理学报 ,2009,41(3):189-195 【核心库】
关键词	框架效应 ; 损益概率 ; 封面故事类型 ; 预期理论 ; 投资决策
地址	1. 中国科学院心理研究所, 北京, 100049 2. 湖南师范大学教科院, 湖北, 长沙, 410081
语种	中文
ISSN	0439-755X
学科	社会科学总论
文献收藏号	CSCD:3533272

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引证文献 11 篇

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