This is a striking case of 'great minds think alike / someone else always has your good ideas first'. Kevin Savage at World Vision and I were literally yesterday trying to come up with good ideas for a 3ie workshop on impact evaluation in relation to humanitarian aid. What we were talking about is that targeting is usually done so poorly that it seems ripe for some experimental research. We were trying to come up with a design that would compare lottery, choosing poor/ vulnerable people administratively with proxy indicators and asking communities to select the poorest. To get around ethical concerns in humanitarian crises I was suggesting you could run an experiment where different groups were provided with an additional cash bonus. I'll let you know if we get anywhere with turning a conversation on a ski chair lift into a proper proposal and getting it funded.