Assessing Risky Social Situations
重新审视风险下的福利经济学,提出“预期均等分配等价”标准,该标准在已知最终统计分布时类似事后标准,在风险不产生不平等时类似事前标准,并揭示了不平等厌恶与尊重个人事前偏好之间的张力。
This paper reexamines the welfare economics of risk. It singles out a class of criteria, the "expected equally distributed equivalent," as the unique class that avoids serious drawbacks of exiting approaches. Such criteria behave like ex post criteria when the final statistical distribution of well-being is known ex ante and like ex ante criteria when risk generates no inequality. The paper also provides a new result on the tension between inequality aversion and respect of individual ex ante preferences, in the vein of Harsanyi's aggregation theorem.