A Research on Dynamic Preference under Subjective Uncertainty

Higashi, Hyogo, and Takeoka（2008）对动态环境中面临主观不确定性的决策者进行了建模。然而，在他们的模型中，假设决策者在每个时期都面临相同的不确定性。在这项研究中，我们提供了一个模型，允许历史依赖的主观不确定性。更具体地说，我们提供了一个公理模型，其中决策者面临着未来自己的时间偏好或贴现因素的不确定性，她对这些不确定性的信念可能根据过去消费的历史而演变。

Higashi, Hyogo, and Takeoka (2008) model a decision maker who faces subjective uncertainty in a dynamic setting. However, in their model, the decision maker is assumed to face the same uncertainty in every period. In this research, we provide a model that allows a history dependent subjective uncertainty. More specifically, we provide an axiomatic model where the decision maker faces uncertainty about her own time preference or discount factors in future and her belief over these uncertainty may evolve according to histories of the past consumption.