Household Equivalence Scales and Interpersonal Comparisons
指出，使用家庭等价规模构建福利不平等指标的做法隐含一个价值判断：调整人口特征后处于同一无差异曲线的家庭福利相等。这一判断缺乏说服力，在品味受过去经验和收入影响时可能违背伦理。
Recent papers have used household equivalence scales to construct measures of welfare inequality. This procedure rests on an often implicit value judgement, namely, that if, after adjustment for demographic characteristics, two households are on the same indifference curve, they are equally well off. That value judgement is not compelling, and there are situations in which it is ethically repugnant. This is particularly likely if tastes are functions of past experience and income.