Pay For Success (PFS) Pipeline Size Estimate – May 2024 (INDIGO)
![](https://impactdatabase.org/wp-content/uploads/2024/05/The-PFS-Pipeline.png)
Impact bonds attempt to align the interests of government stakeholders and private investors in achieving social and environmental good.
Traditionally there are two main variants of income bond: the social impact bond (SIBs) and the development impact bond (DIBs) but other variants like career impact bonds have been created.
Impact bonds have been the subject of academic enquiry and scrutiny by governments around the world.