Countries frequently revise how they measure income or consumption due to changes in data collection and questionnaire design. These changes create comparability breaks in poverty trends over time. This paper develops three methods to create global, regional, and country-level poverty trends...

The June 2025 update to the Poverty and Inequality Platform (PIP) introduces several important changes to the data underlying the global poverty estimates. The most important change is the adoption of the 2021 Purchasing Power Parities (PPPs). In addition, new data for India has been...

This note presents the 9th edition of the World Bank's Multidimensional Poverty Measure (MPM) database, drawing on the latest country data from the Global Monitoring Database (GMD) as of June 2025. The MPM offers a broader view of poverty by examining deprivations along three dimensions of...

In this paper we describe the Stata program cache, which allows for the full output of any Stata command to be cached to disk, enabling easy recovery of command output in the future without the need for re-computation. The cache program interacts with any native Stata or user-written command,...

The March 2024 update to the Poverty and Inequality Platform (PIP) involves several changes to the data underlying the global poverty estimates. In particular, some welfare aggregates have been revised, and the CPI, national accounts, and population input data have been updated. This document...

This note introduces the 13th edition of the Global Database of Shared Prosperity (GDSP). Shared prosperity is the growth in per capita household income or consumption of the poorest 40 percent of the population. This edition of the GDSP revises figures released in November 2024 with the latest...

In many countries, large differences in poverty persist at the subnational level. In addition, global challenges such as climate change, fragility, economic crises, and food insecurity are often trans-border issues that pose significant risks for poverty reduction both across and within...

The September 2023 update to the Poverty and Inequality Platform (PIP) involves several changes to the data underlying the global poverty estimates. In particular, some welfare aggregates have been revised, and the CPI, national accounts, and population input data have been updated. This...

There is evidence of significant under-coverage of the "Auxilio Emergencial” program in Brazil's Continuous National Household Sample Survey (PNADC in Portuguese) 2021. The program, originally launched as an emergency measure by the Government of Brazil to support families during the pandemic,...

The goals of ending extreme poverty by 2030 and working towards a more equal distribution of incomes are part of the United Nations' Sustainable Development Goals. Using data from 166 countries comprising 97.5 percent of the world's population, we simulate scenarios for global poverty from 2019...