标题： 国际比较：多边指数和非参数福利界限 显示英文标题

标题： International Comparisons: Multilateral Indices and Nonparametric Welfare Bounds

摘要： 多边指数数列，如用于国家间价格和收入比较的指数，是经济学中的基本对象。 然而，由于与偏好误设相关的偏差，这些数列在福利方面的解释可能具有挑战性。 为研究这一问题，我利用参考消费者的概念，并推导出其生活成本指数的显示偏好界限。 这些界限优于传统的对应指标，定义了一个新的指数，并允许对现有指数进行评估。 在一项应用中，我发现超优指数表现优于非超优指数，但我的结果支持许多现代方法的可解释性。 显示英文摘要

摘要： Multilateral index numbers, such as those used to make cross-country comparisons of prices and income, are fundamental objects in economics. However, these numbers can be challenging to interpret in terms of welfare due to a bias related to preference misspecification. To study this problem, I exploit the concept of a reference consumer and derive revealed preference bounds on their cost-of-living index. These bounds improve upon their classical counterparts, define a novel index, and permit an appraisal of existing indices. In an application I find that superlative indices outperform non-superlative ones, but my results support the interpretability of many contemporary methods.