Intergenerational discounting with intragenerational inequality in consumption and the environment
Intergenerational discounting with intragenerational inequality in consumption and the environment
复制标题
代际贴现与代内消费和环境不平等
DOI：
10.1007/s10640-018-0282-4
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发表时间：
2018
影响因子：
5.9
通讯作者：
Rintaro Yamaguchi
中科院分区：
文献类型：
--
作者：
T. Y. Garcia;L.J.H. Palad;F.M. Dela Cruz;C.O. Mendoza;R.R. Encabo;J.U. Olivares;E.B. Enriquez(PNRI);K. Iwaoka;Rintaro Yamaguchi
现在已经确定，消费贴现率是由消费增长乘以边际效用弹性决定的，但文献中很少反映分配问题。假设一个具有不平等厌恶的社会福利函数，我们考虑一个消费折扣率，它可以分解为增长效应和代内分配效应。该框架，然后扩展到包括人口的变化和不平等的环境作为一个舒适的效用与恒定的替代弹性。数值算例表明，当对分布进行人口和环境调整时，分布效应变为不可忽略的负向，对于合理的参数，消费折扣率可降低1-3%.
It is now established that the consumption discount rate is determined by the growth of consumption multiplied by the elasticity of marginal utility, but distributive concerns are rarely reflected in the literature. Assuming a social welfare function with inequality aversion, we consider a consumption discount rate that can be decomposed into the growth effect and the intragenerational distribution effect. The framework is then extended to include population change and inequality in the environment as an amenity in a utility with constant elasticity of substitution. Numerical examples illustrate that distributional effects turn non-negligibly negative, that may reduce consumption discount rate by 1–3% for plausible parameters, once distribution is adjusted for both population and the environment.