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Discounting Models for Long-Term Decision Making

机译:长期决策的折扣模型

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This paper investigates alternative approaches to constant rate discounting for calculation of Net Present Value (NPV) in life cycle cost models that are used for engineering trade studies. Alternative approaches are necessary to meet the challenge of equitable intergenerational resource allocation for projects like radioactive waste disposal that have a life cycle that impacts future generations well beyond the 30-year maximum time horizon limit that results from using market-determined interest rates on bonds. This paper reviews the literature on long-term discount models, provides a consistent nomenclature for describing the models, summarizes the theoretical and empirical basis for hyperbolic discounting models, evaluates the research results to date, and provides a recommendation for applying hyperbolic discounting. It also identifies issues with the current U.S. government policy on discounting and the future research necessary to establish an improved foundation for discounting models for long-term projects.
机译:本文研究了用于工程贸易研究的生命周期成本模型中恒定利率折现的替代方法,以计算净现值(NPV)。对于放射性废物处置等项目而言,必须采用替代方法来应对公平的代际资源分配的挑战,这些项目的生命周期对后代的影响远超过使用市场确定的债券利率所产生的30年最大时间范围限制。本文回顾了长期贴现模型的文献,为描述模型提供了一致的命名法,总结了双曲线贴现模型的理论和经验基础,评估了迄今为止的研究结果,并为应用双曲线贴现提供了建议。它还确定了当前美国政府的折价政策以及为长期项目的折价模型建立改进基础所必需的未来研究的问题。

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