Gradual pairwise comparison and stochastic choice
基于眼动追踪证据,假设成对比较是决策过程的基础,理性决策者可能渐进地完成比较,优先处理容易的比较。面对选择问题时,若无法完成所有相关比较,则从未被判定为劣等的选项中等概率选择。该模型解释了相似效应及随机传递性和正则性的违反。
Guided by evidence from eye‐tracking studies of choice, pairwise comparison is assumed to be the building block of the decision‐making procedure. A decision‐maker with a rational preference may nevertheless consider the constituent pairwise comparisons gradually, easier comparisons preceding difficult ones. Facing a choice problem, she may be unable to complete all relevant comparisons and choose with equal odds from alternatives not found inferior. Stochastic choice data consistent with such behavior are characterized and used to infer the underlying preference relation and the order of pairwise comparisons. The choice procedure offers a novel rationale for behavioral phenomena such as the similarity effect and violations of stochastic transitivity and regularity.