How do the 2017 PPPs change global, regional, country-level poverty estimates?

The 2017 PPPs do not change global poverty in a substantial way. Yet there are meaningful changes at the regional level. For example, extreme poverty is reduced in Sub-Saharan Africa and increased slightly in each of the other regions, which nets out to almost zero at the global level. Sub-Saharan Africa still has the highest levels of people living in extreme poverty.

With the 2017 PPPs, poverty estimates for a few countries change considerably, changing their relative rankings with other countries. Most of these country-level changes reflect improvements in the quality of price data. For more details about the changes in global, regional, and country-level poverty profiles, see this working paper, this blog, and this blog.  

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