Consistent Comparisons of Attainment and Shortfall Inequality: A Critical Examination
研究了不平等测量中的一致性属性，即无论用成就还是短缺表示健康数量，排序结果应相同。发现该属性由两个条件组成，去掉过强的条件后，可用的测量方法不再受限。
An inequality measure is 'consistent' if it ranks distributions the same irrespective of whether health quantities are represented in terms of attainments or shortfalls. This consistency property severely restricts the set of admissible inequality measures. We show that, within a more general setting of separate measures for attainments and shortfalls, the consistency property is a combination of two conditions. The first is a compelling rationality condition that says that the attainment measure should rank attainment distributions as the shortfall measure ranks shortfall distributions. The second is an overly demanding condition that says that the attainment measure and the shortfall measure should be identical. By dropping the latter condition, the restrictions on the admissible inequality measures disappear. Copyright © 2015 John Wiley & Sons, Ltd.