Linking to household income is difficult. In El Salvador dairy, the evaluators find that dairy farmers’ farm incomes roughly double that of the control group; however, they do not find an impact on household income or consumption. This is likely because the number of groups of dairy farmers that were randomized was small, and the evaluation was underpowered to report changes in household income by value chain. This needs to be taken into consideration for future evaluation design.
Lesson Learned