When it comes to solving global poverty, people are passionate and polarized. At one extreme: invest more resources. At the other: stop throwing money down a sinkhole. In More Than Good Intentions, Yale economist Dean Karlan and researcher Jacob Appel present a pioneering, realistic, and hopeful approach. By combining behavioral economics with worldwide field research, they show how taking human irrationality into account when providing banking, insurance, health care, and education can significantly improve the well-being of poor people everywhere. "A good follow up to Freakonomics, Predictably Irrational, and Nudge," according to Nudge author Richard H. Thaler.