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Timing and duration of exposure in evaluations of social programs (English)

Impact evaluations aim to measure the outcomes that can be attributed to a specific policy or intervention. While there have been excellent reviews of the different methods for estimating impact, insufficient attention has been paid to questions related to timing: How long after a program has begun should it be evaluated? For how long should treatment groups be exposed to a program before they benefit from it? Are there time patterns in a program’s...
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Behrman,Jere R.; King,Elizabeth M..

Timing and duration of exposure in evaluations of social programs (English). Washington DC : World Bank. http://documents.worldbank.org/curated/en/745351468336279816

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