There is greater disagreement about how much to discount the future simply because it is the future, even if future generations are no better off than us. Whereas the Stern Review follows a tradition among British economists and many philosophers against discounting for pure futurity, most economists take pure time preference as obvious.
因为它是未来，所以人们对未来应该打多大折扣存在很大的意见分歧，即便我们的后代境况不会比我们好。尽管《斯特恩报告》遵循了英国经济学家和许多哲学家反对对纯粹的未来进行打折的传统，但是很显然大多数经济学家更偏爱纯粹的时间。