Time discounting: Declining impatience and interval effect
Time discounting: Declining impatience and interval effect
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DOI：
10.2139/ssrn.958156
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发表时间：
2007-01
影响因子：
4.7
通讯作者：
Yūsuke Kinari;F. Ohtake;Y. Tsutsui
中科院分区：
文献类型：
--
作者：
Yūsuke Kinari;F. Ohtake;Y. Tsutsui
大多数研究都没有区分延迟和间隔，因此不耐烦的下降是否真的存在一直是一个悬而未决的问题。我们进行了明确区分它们的实验，并在短时间内（如不到8周的延迟）确认了这一点。这意味着人们制定动态不一致的计划。我们还发现了时间折现率随时间间隔的延长而减小的区间效应。我们发现，时间间隔和幅度的影响，是因为跨期的选择是部分基于奖励金额的差异，而韦伯定律解释的延迟和时间间隔的影响不够。
Most studies have not distinguished delays from intervals, so that whether the declining impatience really holds has been an open question. We conducted an experiment that explicitly distinguishes between them, and confirmed it at short delay such as less than an 8-week delay. This implies that people make dynamically inconsistent plans. We also found the interval effect that the time discount rate decreases with prolonged intervals. We show that the interval and the magnitude effects are caused because intertemporal choice is made partially based on the differential in reward amount, while Weber’s Law explains neither the delay nor the interval effects sufficiently.