In counting the poor, and measuring the severity of absolute poverty, one faces a number of difficult questions. What poverty line should be used? Should one use the same poverty line across all countries? How should one adjust for differences across countries in the purchasing power of their...

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 very poor people incur a negligible cost of social...

Against what standards should we judge the developing world's overall performance against poverty going forward? The paper proposes two measures, each with both"optimistic"and"ambitious"targets for 2022, 10 years from the time of writing. The first measure is absolute consumption poverty, as...

We are not seeing faster progress against poverty amongst the poorest developing countries. Yet this is implied by widely accepted"stylized facts"about the development process. The paper tries to explain what is missing from those stylized facts. Consistently with models of economic growth...

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...

Development aid and policy discussions often assume that poorer countries have less internal capacity for redistribution in favor of their poorest citizens. The assumption is tested using data for 90 developing countries. The capacity for redistribution is measured by the marginal tax rate on...

The"stylized fact"that distribution must get worse with economic growth in poor countries before it can get better turns out not to be a fact at all. Growth's effects on inequality can go either way and are contingent on several other factors. The authors found no sign in the new cross-country...

The authors report new estimates of measures of absolute poverty for the developing world over 1981-2004. A clear trend decline in the percentage of people who are absolutely poor is evident, although with uneven progress across regions. They find more mixed success in reducing the total number...

It is important to know how aggregate economic growth or contraction was distributed according to initial levels of living. In particular, to what extent can it be said that growth was"pro-poor?"There are problems with past methods of addressing this question, notably that the measures used are...

Drawing on data from 265 national sample surveys spanning 83 countries, the authors find that there was a net decrease in the total incidence of consumption poverty between 1987 and 1998. But it was not enough to reduce the total number of poor people, by various definitions. The incidence of...