Think tanks and international organisations publish a lot of indices that rank countries or institutions by their policies. We ourselves here at CGD we have recently published the fifteenth edition of the Commitment to Development Index (CDI), which ranks 27 rich countries by how their policies affect the lives of people in poorer countries. As we embark on a review of the CDI, here we start by looking other across country-level indices to see if the CDI is still distinct.
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