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Gabriel Demombynes and I write on the World Bank’s Africa Can End Poverty blog:

The Millennium Village Project (MVP) is an important, experimental package of interventions that the United Nations and Columbia University are testing in 14 villages across Africa. The MVP offers a tremendous opportunity to learn whether such interventions can catalyze self-sustaining growth and escape from extreme poverty. But the evaluation approaches currently being used cannot generate convincing evidence of the Project’s impacts. Without such evidence, it will be impossible to generate the billions of dollars needed to scale up the Project approach across Africa, as its proponents hope to do.

We have written a new research paper (summarized here and here) that proposes small and inexpensive modifications to the MVP evaluation approach that would make it possible to evaluate the Project’s impacts.

That paper has generated much discussion, including reports in the Financial Times and in a major newspaper in Kenya. The Project itself has issued a lengthy official response by Pronyk, McArthur, Singh, and Sachs. We welcome this public debate as a way to improve learning about what works in development. We answer below the main questions posed in the Project’s response, much of which rests on a basic misunderstanding.

We go on to argue that the MVP’s response to our critique reflects a common misconception about what constitutes impact evaluation. Read the full post for a detailed explanation.

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CGD blog posts reflect the views of the authors drawing on prior research and experience in their areas of expertise. CGD does not take institutional positions.