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How Sensitive Are Poverty Measures To The Choice Of Equivalence Scale And Unit Of Analysis? Evidence from Urban Ethiopia

Abstract: 

The paper studies the effect of the choice of equivalence scale and unit of analysis on poverty measures using data from urban Ethiopia. Four types of equivalence scales and three different units of analysis were considered. The three commonly used FGT indices namely P0, P1 and P2 were computed for the whole sample and for different sub-samples based on geography and socio-economic characteristics of household heads. We found an important effect of the choice of equivalence scale on the poverty measures for the whole sample and for the sub- samples. The magnitude of the effect varies across sub-samples and in some cases rank reversal was observed. This suggests that maximum care should be done while choosing the appropriate equivalence scale. It is also advisable to consider more than one method of equivalence scale to check the robustness of poverty measures to the choice of equivalence scale. Using households as units of analysis consistently understates the level of poverty while the choice between individuals and equivalent individuals does not change the result much. Households should not be used as units of analysis as this could give a misleading result. In general, P0 which is the most widely used poverty index by policy makers and international organizations is found to be the most sensitive one

Corporate Author: 
Getnet Alemun & Ethiopian Economic Association/Ethiopian Economic Policy Research Institute
Publisher: 
Ethiopian Economic Association (EEA)
ISBN/ISSN: 
978-99944-54-14-7
Primary Descriptors: 

Poverty

Geographic Descriptors: 
Ethiopia
Cataloge Date: 
02/27/2013
Broad Subject heading: 
Growth and Development
Call Number: 
330.963 PRO 2010
Serial Key Title: 
Proceedings of the Seventh International Conference on the Ethiopian Economy
Publication catagory: 
Content type: 
Volume: 
I
Publication date: 
2013-05-27 23:10:00
Forum or Discussion date: 
2013-02-27 15:02:21
Place of publication: 
Addis Ababa, Ethiopia
Type of material: 
Book
Current frequency: 
Annualy