"Prevailing measures of relative poverty put an implausibly high weight on relative deprivation, such that measured … poverty does not fall when all incomes grow at the same rate. This stems from the (implicit) assumption in past measures that … roles of certain private expenditures in poor settings and with data on national poverty lines. The authors propose a new …

"The paper presents a major overhaul to the World Bank's past estimates of global poverty, incorporating new and better … data. Extreme poverty-as judged by what "poverty" means in the world's poorest countries-is found to be more pervasive than … we thought. Yet the data also provide robust evidence of continually declining poverty incidence and depth since the …