This 2012 paper describes three innovative financing strategies for social impact investing: PFS; public-private partnerships; and performance-based contracting. Included are descriptions of each strategies and examples of current or past uses of each strategy.
Citation: Silloway, T., Connors-Tadros, L. & Hayes, C.D. (2012). Sharing Risks and Returns: Social Impact Investment to Scale Up Effective Programs. The Finance Project.