‘Mixed messages' are emerging from the public sector about the long-term sustainability of the private-finance initiative (PFI)/public-private partnership (PPP) procurement method. The value of PPP deals is rising globally but, according to Standards and Poor's, in the UK, there are signs that the ‘deal pipeline is running dry' and political risk is increasing. A spokesman said the turnaround and ‘mixed messages' were coming at a time when investors had finally ‘cottoned on' to the benefits of PFI/PPP in delivering stable, strong returns.