How can donors know if their aid is making a difference? This question is tougher than it seems. Attributing results to donor inputs seems straightforward if the donor pays for progress on a measurable outcome, as CGD has proposed for Cash on Delivery Aid (COD Aid). If the desired results are achieved—say an increase above an agreed baseline in the number of kids completing primary school and taking a competency test—then the program has demonstrated value for money, no?
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