Chronic Poverty and All that: The Measurement of Poverty Over Time

Cesar Calvo, S. Dercon
{"title":"Chronic Poverty and All that: The Measurement of Poverty Over Time","authors":"Cesar Calvo, S. Dercon","doi":"10.2139/ssrn.1646392","DOIUrl":null,"url":null,"abstract":"We explore how to measure poverty over time, by focusing on trajectories of poverty rather than poverty at a particular point in time. We consider welfare outcomes over a period in time, consisting of a number of spells. We offer a characterization of desirable properties for measuring poverty across these spells, as well as an explicit discussion of three issues. First, should there be scope for compensation so that a poor spell can be compensated for by a non-poor spell? Second, is there scope for discounting or should all spells be equally valued? Third, does the actual sequence of poor spells matter, for example whether they are consecutive or not? We offer a number of measures that implicitly offer different answers to these questions, in a world of certainty. Finally, we also offer an extension towards a forward-looking measure of vulnerability, defined as the threat of poverty over time, that incorporates risk. An application to data from Ethiopia shows that especially the assumption of compensation results in different inference on poverty.","PeriodicalId":196465,"journal":{"name":"ERN: Wages; Intergenerational Income Distribution (Topic)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"134","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ERN: Wages; Intergenerational Income Distribution (Topic)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.1646392","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 134

Abstract

We explore how to measure poverty over time, by focusing on trajectories of poverty rather than poverty at a particular point in time. We consider welfare outcomes over a period in time, consisting of a number of spells. We offer a characterization of desirable properties for measuring poverty across these spells, as well as an explicit discussion of three issues. First, should there be scope for compensation so that a poor spell can be compensated for by a non-poor spell? Second, is there scope for discounting or should all spells be equally valued? Third, does the actual sequence of poor spells matter, for example whether they are consecutive or not? We offer a number of measures that implicitly offer different answers to these questions, in a world of certainty. Finally, we also offer an extension towards a forward-looking measure of vulnerability, defined as the threat of poverty over time, that incorporates risk. An application to data from Ethiopia shows that especially the assumption of compensation results in different inference on poverty.
《长期贫困及其相关问题:随时间变化的贫困衡量》
我们通过关注贫困的发展轨迹,而不是某一特定时间点的贫困,探索如何衡量一段时间内的贫困。我们考虑在一段时间内的福利结果,包括一些法术。我们提供了衡量这些时期贫困的理想属性的特征,并对三个问题进行了明确的讨论。首先,是否应该有补偿的余地,这样一个糟糕的法术就可以被一个不糟糕的法术补偿?其次,是否存在打折的空间,或者所有咒语都应该同等价值?第三,糟糕法术的实际顺序是否重要,例如它们是否连续?在一个确定性的世界里,我们提供了一些隐含地为这些问题提供不同答案的措施。最后,我们还提出了对前瞻性脆弱性衡量的扩展,将其定义为长期贫困的威胁,其中包括风险。对埃塞俄比亚数据的应用表明,特别是补偿假设导致了对贫困的不同推断。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信