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Lesson Learned

An irrigation project where demand for the intervention exceeds available funding, can provide an opportunity for random assignment (or other allocation mechanisms that are fair, efficient and informative) that can improve the level of rigor of evaluation results.

An irrigation project where demand for the intervention exceeds available funding, can provide an opportunity for random assignment (or other allocation mechanisms that are fair, efficient and informative) that can improve the level of rigor of evaluation results. In cases like this where demand for irrigation outstrips funding, a well-executed randomized controlled trial of improvements like the tertiary canals could be structured so that impacts can be rigorously evaluated for subgroups of farmers that receive different types of infrastructure rehabilitation.