Contingent Decision Making in the Social World: The “Mental Ruler” Model
Contingent Decision Making in the Social World: The “Mental Ruler” Model
复制标题
社会世界中的偶然决策:“心理统治者”模型
DOI:
10.1007/978-94-015-9827-9_8
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
K. Takemura
中科院分区:
文献类型:
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作者:
K. Takemura
People judge or make decisions in various situations in complex social settings (Fischhoff, 1996; Klein, Orasanu, Calderwood, & Zsambok,! 993). Utility theory is a representative system for explaining various decision making phenomena. It uses mathematical methods and is introduced frequently in consumer activity research in the field of political economy. Although utility theory can explain most decision making phenomena, it cannot completely explain contingent decision making due to problem description (eg, Tversky & Kahneman, 1981), decision procedure (eg, Tversky, Slovic, & Kahneman, 1990), and external task factors (eg, Payne, Bettman, & Johnson, 1993; Selart, 1997). For example, as Tversky and Kahneman (1981) illustrate, even if the completely same alternatives are formed in the same objective situation, the decision made may be different, depending on the way in which a mental representation is created. This chapter will first explain why utility theory cannot completely explain contingent decision making. Secondly, the decision frame model (Tversky & Kahneman. 1981) as well as the psychological purse model (Kojima, 1959; Kojima, 1994) will be introduced from a critical stand point; and finally, a new model of contingent decision making will be introduced, since utility theories (including such nonlinear utility theories as the rankdependent utility theory) are often violated as pointed out above. The mental ruler model assumes that people subjectively construct circumstance in order to create a simple one-dimensional mental ruler, then make decisions using the ruler so created. This one-dimensional mental ruler flexibly created in the decision-making situation may enhance the adaptiveness and effectiveness of problem solving. On the other hand, a mental ruler which is inf1exibly applied to the decision-making situation may cause functional fixation and block creative problem solving because of the fixed onedimensionality. This problem will be discussed later. Not all decisions are one-dimensional; rather, despite the multi-dimensional nature of an object, there is a possibility that onedimensional decisions are made with considerable frequency in naturalistic situations in order for people to cope with the complexities of the social world. Multi-dimensional judgments and decisions are of course made in some cases as assumed by various conventional decision theories.** This c hapter is based on a revision of an e arlier discussion paper entitled" A mental model of creative process in naturalistic decision making: Its qualitative and mathematical representations"(Takemura. 1998b). However, mathematical descriptions of the model were eliminated in this chapter for editorial reasons.