These paragraphs would be the most relevant:That seems to be at-best half related, the article just talks about overall borrowing costs being related to interest rates - a point which seems unremarkable given the general market trends.
The point we were discussing was if government borrowing to fund infrastructure investment would further increase the interest rates enough to make typically more expensive PFI-type deals more attractive.
More borrowing fairly directly pushes up the government interest rates. As the article says, those costs of borrowing have already increased.It’s because of supply and demand. In general, when supply increases, buyers normally face lower prices. So, higher government borrowing has increased the supply of government debt, which means that the price of bonds falls. Since yields are inversely related to price, yields rise – pushing up the cost that the government has to pay to borrow.
The supply of government debt has been rising, particularly since the budget on October 30. That was when chancellor Rachel Reeves set out a significant amount of borrowing as well as tax increases in order to invest in stimulating growth and balance the books over the course of the parliament.
As to the tip over point where a PFI becomes actually cheaper, that’s what economists get paid the big bucks to figure out. But it’s a risk that the government has to consider.