Relative deprivation, shame and social exclusion can matter to the welfare of people everywhere. The authors argue that such social effects on welfare call for a reconsideration of how we assess global poverty, but they do not support standard measures of relative poverty. The paper argues...

Concerns about incentives and targeting naturally arise when cash transfers are used to fight poverty. The authors address these concerns in the context of China's Di Bao program, which uses means-tested transfers to try to assure that no registered urban resident has an income below a...

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...

Empirical studies of tax and benefit incidence routinely ignore behavioral responses and measurement errors. This paper offers an econometric method of estimating the mean benefit withdrawal rate (marginal tax rate) allowing for incentive effects, measurement errors, and correlated latent...

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...

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...

The authors present new estimates of the extent of the developing world's progress against poverty. By the frugal $1 a day standard, they find that there were 1.1 billion poor in 2001-almost 400 million fewer than 20 years earlier. Over the same period, the number of poor declined by more than...

The authors used distribution data from 109 household surveys done since 1980 in 42 developing and transitional economies to find evidence that high rates of growth in average living standards are associated with higher rates of poverty reduction. The adverse distributional effect of recent...

The authors use China's national household surveys for rural and urban areas to measure and explain the welfare impacts of the changes in goods and factor prices attributed to WTO accession. Price changes are estimated separately using a general equilibrium model to capture both direct and...

The paper presents the first major update of the international"$1 a day"poverty line, first proposed in 1990 for measuring absolute poverty by the standards of the world's poorest countries. In a new data set of national povertylines we find that a marked economic gradient only emerges when...