Trial and Error [Forbes]

CGD senior fellow Ruth Levine is cited in this Forbes article noting the importance of independent impact evaluations on aid effectiveness.

From the article:

"You don't see many reports of projects that fail," says Ruth Levine, director of programs at the Center for Global Development, a Washington think tank studying how government policies affect poverty. "There's a huge publication bias. But it's very hard to learn what works if you are only exposed to a nonrandom subset of things that work."