Updating LIS DART Estimates with the Latest 2021 PPPs
With this Spring data release, LIS has implemented the updated 2021 Purchasing Power Parity (PPP) rates issued by the World Bank in May 2024 in its Data Access Research Tool (DART) estimates. These PPPs, based on improved data collection and methodological refinements,
provide more accurate cross-country comparisons by the more recent benchmark year of 2021, better reflecting more recent differences in
price levels.
LIS has also assessed the impact of these updates – including the new PPP base year and revised poverty lines – on indicators such as median income and absolute poverty, offering users an initial benchmark for updating their own estimates. For further details, please consult LIS Technical Working Paper No. 15 here.