Name: Social experiments to fight poverty
Uploaded: 2010-05-03T09:19:00Z
Duration: 16 min 30 s
Description: 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.

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.

Social experiments to fight poverty

Poverty persists despite billions spent, partly because well-intentioned aid often lacks proof of real impact. Randomized controlled trials, like those used in medicine, reveal which solutions save lives and boost education. Simple interventions—such as giving lentils to encourage immunization or providing free bed nets—can multiply results at lower cost. Evidence from these experiments now guides smarter policies that move beyond intuition and ideology.