Does the whole add more than the SUM of its parts?

This is a series about Monitoring, Evaluating and Learning (MEL) whether sets of interventions/portfolios are adding more together than each one would produce on their own. In post 1, I pointed to coherence, the new OECD-DAC evaluation criteria as a way to bridge the ambition of bringing bigger change with the MEL world. In post 2, I shared 3 of 4 practical lessons I’ve learned in experimenting with MEL systems and exercises that focus explicitly on interactions of interventions/portfolios. In the third post, I bring Paul Pierson’s groundbreaking argument for social science to MEL. Paraphrasing, most contemporary MEL takes a “snapshot” view of interventions and portfolios, distorting their effects and meaning by ripping them from their temporal context. Instead, we should place in time interventions/portfolios with the ambition to add more than the sum of the part by constructing MEL systems looking at “moving pictures” rather than taking snapshots.