In the last few weeks, I’ve come upon two research programs (each with a few related papers) that utilize a combination of an RCT or phased-in intervention and follow-up data 7-10 years on to examine new research questions. They both happen to be focused on the lasting effects of childhood health and wellbeing initiatives, but I doubt that this trend will be confined to child health and literacy. Barham, Macours and Maluccio have a few papers (gated) that use the phasing in of a conditional cash transfer program in Nicaragua to test later childhood cognitive and non-cognitive outcomes, distinguishing effects by timing of the intervention. A working paper out last week shows that deworming programs in Uganda not only increased short-term anthropomorphic outcomes, but also contributed to children’s numeracy and literacy several years later.
In short, we’re seeing more evidence that these early health and wellbeing interventions can have profound impacts not just on the immediate outcomes–Under-5 mortaility, school attendance, etc–but also on future outcomes. I think it’s a neat use of experimental design to examine questions we might not have thought about when the programs were first put in place.