At the center of the current education policy debate is the use of school vouchers to directly pay for children to attend whichever school they want. But what is the evidence on their effectiveness?

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Local decisions affect the density at which housing can be built and the complexity, duration, and cost of the land entitlement process, which in turn affect the cost of housing.

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As states and the federal government jointly design Medicaid's future, let's include what we know works - and eliminate what does not.

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The Supplemental Nutrition Assistance Program and nutrition assistance programs more broadly are intended to eliminate hunger and improve diet. What's the strongest evidence for improving the diets of SNAP participants?

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I advocate using randomized experiments because they provide a high level of confidence in the results. But they aren't always possible or appropriate. So what criteria should researchers use to decide when to use them?

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