Intergenerational Equity
公理化分析代际社会偏好时面临困境:平等对待各代与关注每代利益无法同时满足,导致偏好排序不完整或需妥协。本文比较不同偏好的公理基础及其在简单现在-未来冲突中的表现,并以全球变暖等现实冲突讨论应用范围。
Axiomatic analysis of intergenerational social preferences over infinite streams of well-being faces the following dilemma. Equal treatment of generations combined with sensitivity for the interests of each generation rules out explicitly defined preferences that can rank any pair of infinite well-being streams. Hence, either intergenerational social preferences must be incomplete or equal treatment and sensitivity must be compromised. This critical review of axiomatic analyses of preferences over infinite streams evaluates different kinds of intergenerational social preferences by comparing their axiomatic basis as well as their performance in simple present-future conflicts. The scope for application is discussed, using real-world intergenerational conflicts (such as global warming) as a backdrop.