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原文連結
論文資訊
- 類型：已發表論文
- 日期：2019
摘要
An important question in 經濟s is how people choose between different payments in the future. The classical normative model predicts that a decision maker discounts a later payment relative to an earlier one by an exponential function of the time between them. Descriptive models use nonexponential functions to fit observed behavioral phenomena, such as preference reversal. Here we propose a model of discounting, consistent with standard axioms of choice, in which decision makers maximize the growth rate of their wealth. Four specifications of the model produce four forms of discounting-no discounting, exponential discounting, hyperbolic discounting, and a hybrid of exponential and hyperbolic discounting-two of which predict preference reversal. Our model requires no assumption of behavioral
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