What is PFI and how prevalent is it?published at 16:52 British Summer Time 25 September 2017
The Private Finance Initiative (PFI) is a way of financing investment in public infrastructure using private capital.
Private firms stump up the cost of building facilities - such as a hospital or school - and, in return, the state makes payments over a period of time - often about 25 years - for their use and management.
The model has been attractive to governments of all political persuasions as it limits upfront capital expenditure and reduces risk while future payment obligations do not count towards the national debt. However, its value for money has long been questioned.
As of March 2016 there were 716 PFI projects, 686 of which were still operational, external. The others had either been cancelled or had reached the end of the contract period.
The SNP government stopped new PFI contracts when it came to power in Scotland, replacing them with NPDs (non-profit distributing projects).