On intra- and interpersonal utility comparisons
On intra- and interpersonal utility comparisons
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关于内部和人际效用比较
DOI：
10.1007/bf00177659
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发表时间：
1991
影响因子：
0.9
通讯作者：
W. Bossert
中科院分区：
文献类型：
--
作者：
W. Bossert
在本文中，它是建议制定假设的可比性的个人效用方面的有意义的声明，而不是使用通常的方式来定义这样的假设，通过某些集合的容许变换。各种假设，涉及内部和人际之间的比较效用水平和效用差异的有意义的陈述和比较，他们的“传统”的同行。结果表明，这两种方法，在一般情况下，是不等价的。在一个社会选择框架，它表明，这些方法之间的差异可以是相当大的：取代通常的基数单位可比性假设的条件，涉及比较的效用差异，这是类似的精神变成了一个众所周知的表征功利主义的社会福利功能成为一个不可能定理。
In this paper, it is suggested to formulate assumptions on the comparability of individual utilities in terms of meaningful statements rather than using the usual way of defining such assumptions by means of certain sets of admissible transformations. Various assumptions involving intra- and interpersonal comparisons of utility levels and utility differences are introduced in terms of meaningful statements and compared to their “traditional” counterparts. It is shown that these two approaches are, in general, not equivalent. In a social choice framework, it is demonstrated that the difference between these approaches can be quite substantial: replacing the usual cardinal unit comparability assumption by a condition involving comparisons of utility differences which is similar in spirit turns a well-known characterization of the utilitarian social welfare functional into an impossibility theorem.