One of the claims that I think you're referring to was in Elizabeth Lower-Basch's paper on the social impact bonds. She says two things that I think are interesting.
One is that there will almost always be a higher cost, because you have to create a new bureaucracy or a new entity to run the social investment approach. The other thing that I think she at least implies is that there is always some draw on government resources in establishing programs such as this.
I wonder whether you have any comment on those two points that I drew from her report.