On Multiple Discount Rates
用社会选择方法解决贴现率冲突，提出公理权衡代际效用比较与公平，得出功利主义、最大最小或多重功利主义规则。
We study the problem of resolving conflicting discount rates via a social choice approach. We introduce several axioms, seeking to capture the tension between allowing for intergenerational comparisons of utility, and imposing intergenerational fairness. Depending on which axioms are judged appropriate, we are led to one of several conclusions: a utilitarian, maxmin, or a multi‐utilitarian rule, whereby a utility stream is judged by the worst in a set of utilitarian weighting schemes across discount rates.