2026年3月贫困与不平等平台（PIP）更新

March 2026Update to thePoverty andInequalityPlatform (PIP) What’s New R. Andres Castaneda Aguilar,Tanida Arayavechkit,Javier Baez,Alexandru Cojocaru,Reno Dewina,Carolina Diaz-Bonilla,Tony Fujs,Nduati M. Kariuki,Christoph Lakner,Gabriel Lara Ibarra,JonasLønborg,Daniel G.Mahler,KellyY.MontoyaM.,Laura L.Moreno,Minh C. Nguyen,NatsukoK. Nozaki,Lokendra Phadera,Ririn S.Purnamasari,Zurab Sajaia,Diana M.Sanchez,Ganesh Kumar Seshan,NoziphoS.Shabalala,SamuelK.Tetteh-Baah,Martha C. Viveros Mendoza,Haoyu WuandNishant Yonzan. March 2026(UpdatedMarch2026*) Keywords:What’s New;March 2026; Luxembourg Income Study Public Disclosure Authorized Development Data GroupDevelopment Research GroupPoverty and Equity GlobalDepartment GLOBALPOVERTYMONITORINGTECHNICALNOTE50 Abstract TheMarch2026update to the Poverty and Inequality Platform (PIP)incorporatesnewdata, as well asrevisionsto the data underlying the global poverty estimates.Thistechnical notedocuments these changes and explains the methodologicalreasonsbehindthem. Key updates include an expansion of bin-level data derived from the LuxembourgIncome Study, increasing the number of bins from 400 to 1,000 to improve precision.The PIP database has also been extended to include28additional country-years, bringingcoverage to more than2,500 welfare distributions across 172 economies. Finally,depending onthe availability of recent household survey data, global and regionalpoverty estimates are reported through 2024, with model-based nowcastsnowextendingto 2026. All authorswerewith the World Bankat the time of writing. Corresponding authors: Christoph Lakner(clakner@worldbank.org) and Minh C. Nguyen (mnguyen3@worldbank.org).The authors are thankfulfor comments and guidance received fromDeon Filmer, Haishan Fu,andLuis-Felipe Lopez-Calva.Wewould also like to thank the countless Poverty Economists that have provided data and documentationand patiently answered our questions. Without them the database of household surveys that underpinsthe World Bank’s global poverty measures wouldnot exist.The authorsgratefully acknowledgepartialfinancial support from the UK government through the Data and Evidence for Tackling ExtremePoverty (DEEP) Research Programme.This note has been cleared byUmar Serajuddin. *March 2026update: •The 2026 nowcast has been updated following corrections to the imputed estimates in2026 for countries lacking survey data. This affects the regional and global aggregatesin 2026(inTable1).Thenowcastedextreme povertyratefor2026 has been correctedfrom 9.8 percent to 10.0percent.All other estimates are unaffected. The Global Poverty Monitoring Technical Note Series publishes short papers that document methodological aspectsof the World Bank’s global poverty estimates. The papers carry the names of the authors and should be citedaccordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors.They do not necessarily represent the views of the International Bank for Reconstruction and Development/WorldBank and its affiliated organizations, or those of the Executive Directors of the World Bank or the governments theyrepresent. Global Poverty Monitoring Technical Notes are available atpip.worldbank.org/. Contents 1. Introduction.................................................................................................................................22. Changes to welfare distributions.................................................................................................52.1. Bhutan 2022.........................................................................................................................52.2. Bolivia 2019-2020...............................................................................................................62.3. Brazil 2012-2023.................................................................................................................62.4. Bosnia and Herzegovina 2007, 2011...................................................................................72.5. Chile 2022............................................................................................................................82.6. Colombia 2008-2020, 2023.................................................................................................82.7. El Salvador 2000-2006, 2017..............................................................................................92.8. EU-SILC............................................................................................................................102.9. Kenya 2022........................................................................................................................102.10. Lebanon 2022...................................................................................................................112.11. Luxembourg Income Study (LIS) database.....................................................................122.12. Mal