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Regional aggregates, often weighted by population or GDP, may mask distributional changes— for example, change in regional disparities— in development outcome indicators and hence, provide an incomplete picture of development. The analysis of distributions of two indicators on income poverty and inequality from 2000 to 2017 in Asia-Pacific region shows that population-weighted regional aggregates are largely influenced by changes in the two most populated countries (China and India). The paper suggests alternative aggregates/analyses that provide a more accurate picture of distributional changes.

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