Is the UK on the road to disaster? Those who believe it is insist that it is mad to tackle a calamity caused by excessive borrowing with still more borrowing, this time by the government as borrower and lender of last resort. These criticisms are wrong and right: wrong, if the government remains creditworthy; right, if it does not. So what did Monday’s pre-Budget report tell us about the government the UK now has? Should you trust it with your money, or not?

A creditworthy government can shift excess debt from the private sector on to the backs of taxpayers. An uncreditworthy government cannot. If the cost of debt becomes too high, the latter will be forced into default, either openly or via inflation. In the UK’s case, inflation would be triggered by a flight from sterling.