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This dataset includes the share in extreme poverty, estimated by Michalis Moatsos based on the 'cost of basic needs' approach.

The ‘cost of basic needs’ approach was recommended by the World Bank Commission on Global Poverty, headed by Tony Atkinson, as a complementary method in measuring poverty.

Tony Atkinson –and, after his death, his colleagues– turned this report into a book that was published as .

The work by Moatsos is based on what was suggested by Allen in Robert Allen (2017) – Absolute poverty: When necessity displaces desire. In American Economic Review, Vol. 107/12, pp. 3690-3721,

Moatsos describes the methodology as follows: “In this approach, poverty lines are calculated for every year and country separately, rather than using a single global line. The second step is to gather the necessary data to operationalize this approach alongside imputation methods in cases where not all the necessary data are available. The third step is to devise a method for aggregating countries’ poverty estimates on a global scale to account for countries that lack some of the relevant data.” In his publication you find much more detail on all of the shown poverty data.

This dataset also includes the share of people living below $1.90 (2011 prices) for comparison.