The "developing world's middle class" is defined here as those who are not poor when judged by the median poverty line of developing countries, but are still poor by US standards. The "Western middle class" is defined as those who are not poor by US standards. Although barely 80 million people...

Abhijit Banerjee and Esther Duflo offer a coherent vision for an economics of poverty and antipoverty policy. Their economics is grounded in an effort to understand the economic and psychological complexities in the lives of poor people, informed by social experiments and field observations....

The traditional approach to poverty measurement puts no explicit weight on success at increasing the typical level of living of the poorest—raising the consumption floor. To address this deficiency, the paper defines and measures the expected value of the floor, allowing for transient effects...

It is well known in theory that certain forms of non-linear dynamics in household incomes can yield poverty traps and distribution-dependent growth. The potential implications for policy are dramatic: effective social protection from transient poverty will be an investment with lasting benefits,...

Policy-oriented discussions often assume that “better targeting” implies larger impacts on poverty or more cost-effective interventions for fighting poverty. The literature on the economics of targeting warns against that assumption, but evidence has been scarce and the lessons from the...

Thirty years ago, Nanak Kakwani provided elegant nonparametric formulae for the point elasticities of measures of poverty with respect to changes in the mean of the distribution of income, thus analytically linking the poverty measures to key macroeconomic aggregates. Numerous insights are found...

How much economic mobility is there across generations in a poor, primarily rural, economy? How much do intergenerational linkages contribute to current inequality? We address these questions using original survey data on Senegal that include an individualized measure of consumption. While...