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Lesson Learned

It is important to have a good sense of the counterfactual before the project starts and to monitor the counterfactual assumptions during implementation.

It is important to have a good sense of the counterfactual before the project starts and to monitor the counterfactual assumptions during implementation. One of the key predicted benefits of the project was reducing the incidence of Guinea worm. However, during implementation, Guinea worm was eradicated in Ghana. This highlights the importance of updating assumptions around the counterfactual to ensure that the project results are accurate.