FAST Company Co.Exist article on social impact bonds in the United States.

"'It's the economic environment. Government budgets are tight and this is a new way in which you can think about saving customer money. Preventative interventions can cost taxpayers a lot less in the long term than remedial interventions,' explains Justina Lai, an associate at the Rockefeller Foundation, which is investing in social impact bonds both in the U.K. and in the U.S."