Alleviating poverty is more guesswork than science, and lack of data on aid's impact raises questions about how to provide it. But Clark Medal-winner Esther Duflo says it's possible to know which development efforts help and which hurt—by testing solutions with randomized trials.
Esther Duflo is a development economist who takes economics out of the lab and into the field to discover the causes of poverty and means to eradicate it. Read more about Esther Duflo at TED.com.
Available translated into 10 other languages at TED.com.