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Violations of betweenness and choice shifts in groups

机译:违反群体之间的中间和选择转变

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In decision theory, the betweenness axiom postulates that a decision maker who chooses an alternative A over another alternative B must also choose any probability mixture of A and B over B itself and can never choose a probability mixture of A and B over A itself. The betweenness axiom is a weaker version of the independence axiom of expected utility theory. Numerous empirical studies documented systematic violations of the betweenness axiom in revealed individual choice under uncertainty. This paper shows that these systematic violations can be linked to another behavioral regularity-choice shifts in a group decision making. Choice shifts are observed if an individual faces the same decision problem but makes a different choice when deciding alone and in a group.
机译:在决策理论中,中间性公理假设,选择另一个A而不是另一个B的决策者还必须选择A和B相对于B本身的任何概率混合,而决不能选择A和B相对于A本身的概率混合。中间公理是期望效用理论的独立公理的较弱版本。大量的实证研究表明,在不确定性下,个人选择的系统性违背了揭示的个人选择。本文表明,这些系统的违规行为可能与群体决策中的另一种行为规律性选择选择相关。如果一个人面临相同的决策问题,但在一个人或一个团队中做出不同的选择时,就会观察到选择的转变。

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