Let's increase foreign aid by $1.47 trillion a year. The reasons not to are quite weak.
The Gini coefficient has a lot of problems. The Palma ratio — the top ten percent's share of income, divided by the bottom 40 percent's — is a better measure. And at a global level, it's staggeringly high.
The poorest Argentinians and Indians are actually poor. The poorest Americans are solidly middle-class, from a global perspective.
World Bank President Jim Yong Kim wants to end extreme global poverty in 17 years. Here's how that could happen.