YouTube - Esther Duflo: Social experiments to fight poverty - 0 views
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thinkahol * on 26 Dec 10http://www.ted.com 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.