Daniel Kahneman与行为经济学

主要介绍诺贝尔奖得主Daniel Kahneman在行为经济学领域的主要贡献。传统经济学和心理学在对决策过程的研究上存在基本假设上的区别,Kahneman等人从心理学研究基础上开创的展望理论是行为经济学的理论基石。展望理论相对于预期效用理论更准确地描绘了决策人在风险下的决策行为,为将来经济学的理论和实证研究打下了坚实的基础。     

Attention and cognition

Forty 4-year-old children were subjects in an experimental designed to determine whether learning to attend to relevant cues is a sufficient condition for acquisition of length and number conservation. Three groups of non-conservers were trained by means of an oddity-problem procedure to attend to the cues specifying either length, number, or both length and number. They were subsequently tested along with an untrained control group on tasks of length, number, mass and continuous quantity conservation. Some improvement in conservation was found, but it was neither impressive in magnitude nor specific to the cues of training. For example, the group trained to attend to length cues conserved length about 25% of the time, the same rate at which this group also conserved number, mass, and liquid quantity. This non-specificity is contrary to an attention hypothesis and suggests instead that training, to the extent it was effective, induced a general, abstract quantitative knowledge.     

Allocentric versus idiocentric tendencies: Convergent and discriminant validation

Allocentric tendencies were studied with a multimethod questionnaire and Illinois undergraduates. Nine scales measuring different aspects of allocentrism were shown to have good reliability and to be intercorrelated, thus showing convergent validity. Factor analysis identified three aspects: subordination of personal to group goals, the ingroup as extension of the self, and ingroup identity. The scales also had satisfactory discriminant validity. Those high on idiocentric tendencies used equity and those high in allocentric tendencies used equality and need in distributing rewards. A second study found that those who are allocentric are more likely to emphasize the values of cooperation, equality, and honesty, and those who are idiocentric to emphasize the values of comfortable life, competition, pleasure, and social recognition. Those who were allocentric reported receiving more social support and a better quality of social support; those who were idiocentric were higher in achievement motivation, alienation, anomie, and reported greater loneliness.     

Variants of uncertainty

In contrast to formal theories of judgement and decision, which employ a single notion of probability, psychological analyses of responses to uncertainty reveal a wide variety of processes and experiences, which may follow different rules. Elementary forms of expectation and surprise in perception are reviewed. A phenomenological analysis is described, which distinguishes external attributions of uncertainty (disposition) from internal attributions of uncertainty (ignorance). Assessments of uncertainty can be made in different modes, by focusing on frequencies, propensities, the strength of arguments, or direct experiences of confidence. These variants of uncertainty are associated with different expressions in natural language; they are also suggestive of competing philosophical interpretations of probability.     

Developmental changes in assigning agent relations in Hebrew: The interaction between word order and structural cues

Developmental changes in the interaction between word order and structural cues was investigated by having Hebrew-speaking children between 4 and 10 years of age interpret NVN utterances that balanced the complementary and contradictory effects of work order and two types of morphological cues, inflections that mark subject-verb gender agreement and an object particle. In Hebrew, gender inflections are highly complex and irregular while the object particle is highly regular and distinctive. Both word order and structural cues affected interpretations by subjects of all age groups, though the role of structural cues increased with age. For all groups, the objec particle was a dominant cue. The likelihood of assigning the agent relation to the first or second noun systematically varied with the relative weights of cues that supported and opposed each assignment. Comparisons were made between processing of Hebrew and processing of Serbo-Croatian and Turkish.     

Belief discrepant behavior and the bogus pipeline: Impression management or arousal attribution

Based on recent studies impression management theorists conclude that following belief discrepant behavior, persons will feign attitude change on paper measures, but report their “true” beliefs when attached to a lie detector (the bogus pipeline). A dissonance arousal explanation of these bogus pipeline results suggests that subjects may attribute their arousal to the bogus pipeline equipment instead of to dissonance and therefore may not be motivated to change their attitudes. The present study examined these competing interpretations and yielded results which support the dissonance arousal attribution explanation. Subjects who were attached to a (bogus pipeline) lie detector exhibited attitude change if given the opportunity to get accustomed to the equipment (which made attribution of arousal to the equipment less plausible), but showed no attitude change if no habituation experience was provided.