Joshua Angrist on Econometrics and Causation
EconTalk
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The Limits of Randomized Trials in Psychology
There's been a huge interest in the last 10 years over similar randomized trials in poor countries trying to find out what works and doesn't work. The first problem is limited sample size, if that's all you're telling me, he says. But there are certainly strategies for that, and we don't have to invent them,. He adds: One of the big roles of a social scientist is to point out what's not likely to be work or effective.
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