There are different targets.
The targets you're probably referring to, if I'm understanding you correctly, are the targets that are built into the contractual arrangements. When I think about the social impact bonds in the UK, there's a contractual arrangement between different sets of players, and those targets are related to something around the individual who is receiving the intervention.
For instance—and I know this one a bit better—there's a rough sleeping social impact bond, a homelessness social impact bond, in London. Some of the targets are, for instance, the reduction in the use of emergency services in hospitals by people who are sleeping rough. The idea is that the intervention, the services that you're providing the individuals should, over time, eliminate their need to always go to emergency services. You're going to set them up presumably in a safe place, a home. You're going to get them access to regular medical care. Over time that will reduce the costs on public services. Emergency costs are high costs compared with those of going to your family doctor and getting the kind of attention you need.
Those are the kinds of targets that are set, and you can see they serve a dual purpose. On the one hand, they're in aid of individuals, trying to get them back on their feet. At the same time, they're trying to decrease some costs in the public sector, some areas where we know we have high costs and we could reduce them and at the same help individuals. Those are targets in contracts.