Asad Liaqat

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In this file photo, Pakistani livestock traders walk with their camels through a rice field near an animal market in Lahore on Oct. 8, 2013. (Arif Ali/AFP/Getty Images)

In international development, the “evidence revolution” has generated a surge in policy research over the past two decades. We now have a clearer idea of what works and what doesn’t. In India, performance pay for teachers works: students in schools where bonuses were on offer got significantly higher test scores. In Kenya, charging small fees for malaria bed nets doesn’t work — and is actually less cost-effective than free distribution. The American Economic Association’s registry for randomized controlled trials now lists 1,287 studies in 106 countries, many of which are testing policies that very well may be expanded.

But can policymakers put this evidence to use?…  Seguir leyendo »