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等级依赖效用模型在决策权重设置上存在理论缺陷;差分-等级依赖效用模型在有限理性假设下,考虑结果差分变化对决策权重的影响,提出基于差分的决策权重与概率权重的组合权重控制机制,可克服等级依赖效用模型的缺陷;针对差分-等级依赖效用模型的检验表明模型可很好解释拆分效应;差分-等级依赖效用模型保持了等级依赖效用模型的理论框架,可对人们的风险决策行为做出更好的解释和预测.
The hierarchical dependency utility model has some theoretical flaws in the decision weighting setting. Under the bounded rationality hypothesis, the differential-level dependent utility model proposes the combined weight control mechanism based on the difference decision weight and the probability weight considering the effect of the difference of the result on the decision weight. Which can overcome the flaws of the level-dependent utility model. The test for the difference-level-dependent utility model shows that the model can explain the split effect well. The difference-level-dependent utility model maintains the theoretical framework of the level-dependent utility model, Make better explanations and predictions of behavior.