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Tracking poverty with coarse data: evidence from South Africa

Abstract  

Household surveys often contain coarse data, which consist of a mixture of missing values, interval-censored values and point
(fully-observed) values, making it difficult to construct a continuous money-metric measure of wellbeing. This paper assesses
the sensitivity of poverty and inequality estimates to the multiple imputation of coarse earnings data and reported zero values
using the 2001–2006 South African Labour Force Surveys. Estimates of poverty amongst the employed are shown not to be sensitive
to multiple imputation of missing and interval-censored data, but are sensitive to the treatment of workers reporting zero
earnings. Poverty trends are generally robust to the choice of method, and a significant decline in poverty is evident. Inequality
estimates, on the other hand, appear more sensitive to the treatment of zero values and the choice of imputation methods,
and, overall, no particular trends in inequality could be discerned.

  • Content Type Journal Article
  • Pages 1-27
  • DOI 10.1007/s10888-011-9211-2
  • Authors
    • Claire Vermaak, School of Economics and Finance, Westville Campus, University of KwaZulu-Natal, Pvt Bag X54001, Durban, 4000 South Africa
    • Journal Journal of Economic Inequality
    • Online ISSN 1573-8701
    • Print ISSN 1569-1721
Posted in: Journal Article Abstracts on 12/21/2011 | Link to this post on IFP |
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