A large proportion of revenue gains over the last two decades has come from countries’ efforts to improve the design and compliance of consumption and other indirect taxes, particularly the VAT (value-added tax); in doing so, the objective has been to  minimize VAT’s regressive effe...

Mohamed Bouazizi is the man whose protest sparked the Arab Spring in December 2010. Bouazizi was a typical “struggler,” as in the title of my keynote speech at the Australasian Aid conference several weeks ago: “Strugglers: This Century’s New Development Challe...

Recently, the World Bank published its latest Global Economic Prospects report, which highlights a welcomed cyclical recovery for all major regions of the world following recent slow growth. I was pleased to participate in a panel discussion at CGD analyzing the report’s finding...

By making this data public, we hope to encourage more development professionals to use the median in evaluating individuals’ material well-being in developing (and developed) countries and progress toward broad-based economic growth and shared prosperity. We also hope that wider use of the median wi...

Median measures of well-being give us a better picture than the mean of the well-being of a “typical” individual. Take Nigeria and Tanzania: in 2010, Nigeria’s GDP per capita (at PPP) was $5,123; Tanzania’s stood at only $2,111. This suggests that Nigerians were more than twice as well off as Tanzan...

PovcalNet, the World Bank’s global poverty database, provides all kinds of country statistics, including mean income, the share (and number) of the population living in absolute poverty ($1.90), the poverty gap and several measures of income inequality, such as the Gini coefficient. But one th...