Price Indexes, Inequality, and the Measurement of World Poverty
Price Indexes, Inequality, and the Measurement of World Poverty
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DOI：
10.1257/aer.100.1.5
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发表时间：
2010-03-01
影响因子：
10.7
通讯作者：
Deaton, Angus
中科院分区：
文献类型：
--
作者：
Deaton, Angus
我讨论了世界贫困和不平等的衡量，特别注意购买力平价（PPP）的国际比较项目的价格指数的作用。随着国际比较方案的最新修订，全球不平等加剧，这降低了相对于美元的全球贫困线。最近贫穷人口大幅增加近5亿，是由于全球贫穷线更新不当，而不是由于国际比较方案的修订。即便如此，在差异很大的国家之间进行购买力平价比较的理论和经验基础仍然薄弱。我主张更广泛地使用来自国际监测调查的自我报告，并主张真正以美元计价的全球贫困线。
I discuss the measurement of world poverty and inequality, with particular attention to the role of purchasing power parity (PPP) price indexes from the International Comparison Project. Global inequality increased with the latest revision of the ICP, and this reduced the global poverty line relative to the US dollar. The recent large increase of nearly half a billion poor people came from an inappropriate updating of the global poverty line, not from the ICP revisions. Even so, PPP comparisons between widely different countries rest on weak theoretical and empirical foundations. I argue for wider use of self-reports from international monitoring surveys, and for a global poverty line that is truly denominated in US dollars.