This intermediate PIP update corrects several errors as documented in this post.
The consumption aggregate has been revised to include all relevant non-food expenditures. In the previous version, non-food expenditures in four categories (utilities, communication services, domestic services, and education) were not fully accounted for with all households, leading to an underestimation of total consumption. The upward revision in the consumption aggregate reduces the poverty rates and leads to a small upward revision of the Gini index.
| 09 May | 08 April | |
|---|---|---|
| Gini Index | 30.71 | 30.14 |
| Poverty headcount $1.90 | 1.85 | 2.60 |
| Poverty headcount $3.20 | 14.50 | 17.79 |
| Poverty headcount $5.50 | 49.43 | 55.54 |
Four changes have been made to the national accounts data, which affects the reference-year series for several countries. First, due to an error in the data, the GDP per capita value for Somalia in 2011 has been removed.
Second, previously when WEO had information on total GDP but no population estimates, and hence no information on GDP per capita, GDP per capita was inferred using population estimates from WDI. This is no longer done because the population series from WDI may be different from the population series WEO uses in adjacent years to compute GDP per capita, which could create unrealistic trends in growth in GDP per capita. As a consequence of this change, there is now no national accounts estimate for Samoa in 1981 and estimates for Guinea before 1990 rely on the Maddison Project Database rather than WEO.
Third, the vintage of the WDI national accounts data used for India has been updated to 15 February 2022, which is consistent with the vintage used for all other countries. This affects the reference-year series for India slightly.
Fourth, the February version of WDI also includes national accounts data for the Syrian Arab Republic, which are now being used in the reference-year series. Previously, WDI did not include national accounts data for the Syrian Arab Republic, so alternative estimates were used (for further details on the earlier estimates, see this document).
The comparability indicator for Nigeria has been corrected. It now shows a break in comparability between the 2015/16 and 2018/19 surveys.
The comparability indicator for Maldives has been corrected. It now shows a break in comparability between the 2016 and 2019 surveys
For Russia, the country profiles page now shows the consumption trend (previously, the income trend was shown). In the poverty calculator, both trends are available.
For attribution, please cite this work as
Team (2022, May 9). PIP Data Updates: PIP data update on May 9, 2022. Retrieved from https://pip-technical-team.github.io/PIP_data_revisions/posts/2022-05-09-pip-data-update/
BibTeX citation
@misc{team2022pip,
author = {Team, PIP Technical},
title = {PIP Data Updates: PIP data update on May 9, 2022},
url = {https://pip-technical-team.github.io/PIP_data_revisions/posts/2022-05-09-pip-data-update/},
year = {2022}
}