Implications of Using Nonstandard Poverty Lines

Many developing countries’ official poverty methodologies rely on nonstandard poverty lines, which complicate poverty comparisons across space or time. The paper considers the case of the Arab Republic of Egypt, whose official poverty lines have two important nonstandard features. First, the line is neither absolute nor relative, but rather hybrid or “weakly relative.” Second, the poverty line’s implicit equivalence scales are not fixed, but are rather endogenous. This paper provides a conceptual and quantitative understanding of these two nonstandard features. The results reveal that the equivalence scale implicit in the official methodology is quantitatively very similar to the (simpler) per capita equivalence scale. Switching to a per capita equivalence scale would help address an implicit gender bias that the paper identifies in Egypt’s official poverty lines. The analysis shows that the official distribution of poverty across regions is very similar to that associated with a purely absolute line. In addition, the change in official poverty rates over the period analyzed (2015 to 2017/18) lies halfway between the larger increase captured by a purely absolute line (10 percentage points) and that captured by a purely relative measure (1 percentage point). However, the results show that these more standard poverty lines do not systematically perform better than the official methodology with respect to the identification of disadvantaged households.

Saved in:
Bibliographic Details
Main Authors: Decerf, Benoit, Genoni, Maria Eugenia, Helmy, Imane, Sanz, Federico
Format: Working Paper biblioteca
Language:English
English
Published: Washington, DC: World Bank 2023-05-15
Subjects:ABSOLUTE POVERTY, POVERTY TREND, EQUIVALENCE SCALE, IDENTIFICATION OF POOR HOUSEHOLDS, POVERTY METHODOLOGY, IMPLICIT GENDER BIAS,
Online Access:http://documents.worldbank.org/curated/en/099529105082319790/IDU0c1bece8809a0004c330b3fe079d8b57aecf7
https://openknowledge.worldbank.org/handle/10986/39807
Tags: Add Tag
No Tags, Be the first to tag this record!