Thank you for your comment. We share your desire for ranking different combinations of interventions and, for any given context, choosing the best set. From our regression analysis however, we have been unable (in spite of really wanting to do that) to make the claim that “whole is greater than the sum of the parts,” and much less which specific intervention combinations work the best. The lack of positive interaction effects in the analyses may be due to the small share of children with access to the specific sets of adequacies. For more definitive answers much more detailed data would be needed.
We do find that there are differences in the probability of stunting depending on which of the four determinants a child has access to. Specifically in Indonesia, among children with access to just one driver, access to adequate food security alone is associated with the largest increases in the average height-for-age, than access to adequate care alone which is not associated with significant gains. However, it is important to keep in mind that while the analyses describe the current state of nutritional drivers and their correlation with nutrition outcomes the models are not causal.