{"title":"Poverty orderings and intra-household inequality: The Lost Axiom","authors":"Eugenio Peluso, A. Trannoy","doi":"10.25071/1874-6322.23678","DOIUrl":null,"url":null,"abstract":"We investigate under which conditions it is possible to infer the\nevolution of poverty at the individual level from the knowledge of\npoverty among households. Poverty measurement is approached by\nthe poverty orderings introduced by Foster and Shorrocks (1988). The\nanalysis is based on a reduced form of household bargaining (Peluso\nand Trannoy, 2007) and provides results in terms of preservation of\npoverty orderings. We point out the main analogies and differences\nbetween inequality and poverty assessment, expressing them in terms\nof empirically testable conditions. In particular, knowing the change\nin poverty at the household level is not sufficient to deduce a similar\nchange in poverty at the individual level. We need to know the change\nin the household income distributions far beyond their poverty line.\nThe focus axiom does not hold in this context.","PeriodicalId":142300,"journal":{"name":"Journal of Income Distribution®","volume":"202 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Income Distribution®","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25071/1874-6322.23678","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
We investigate under which conditions it is possible to infer the
evolution of poverty at the individual level from the knowledge of
poverty among households. Poverty measurement is approached by
the poverty orderings introduced by Foster and Shorrocks (1988). The
analysis is based on a reduced form of household bargaining (Peluso
and Trannoy, 2007) and provides results in terms of preservation of
poverty orderings. We point out the main analogies and differences
between inequality and poverty assessment, expressing them in terms
of empirically testable conditions. In particular, knowing the change
in poverty at the household level is not sufficient to deduce a similar
change in poverty at the individual level. We need to know the change
in the household income distributions far beyond their poverty line.
The focus axiom does not hold in this context.