This briefing note highlights the major findings of the project 'Wealth creation through integrated development of potato production’, which has brought a wide range of positive livelihood changes for potato farmers in the highlands of Ethiopia. The project began in 2008 and was aimed at addressing constraints faced by potato producers in Ethiopia and improving the wealth and livelihoods of potato producers.

This piece examines the prevailing thinking and trends in evaluation (specifically impact assessment), which is important for understanding how a contest of ideas has become something of a battleground in the quest for better evidence. It is particularly Impact assessment and the quest for the Holy Grail Common Fund for Commodities relevant for the many organisations, including CFC, who desire methodological rigour in their evaluations and yet have to be realistic when it comes to evaluation budgets.