
3 Sep 2025
The Conservative politician RAB Butler (1902-82) was known for his success in achieving cross-party consensus. His memoir was titled The Art Of The Possible. In the end he was famous for never being Prime Minister, despite a long and senior career. Perhaps a clue to that can be found in the character of Margaret Thatcher who once said dismissively that a consensus is “something in which no one believes, but to which no one objects.” The UK’s public finances are in some kind of crisis. Logic suggests that Chancellor Reeves has three choices, all of which may prove impossible: In theory she could cut expenditure. But this is apparently politically too difficult. Her own backbenchers all seem to want public spending to rise. There is no Javier Milei waiting in the wings with a chainsaw. Second, she could borrow more and more. This is politically possible but financially risky if the bond vigilantes demand yet higher interest rates. We are now paying £107bn interest to service debt of £2.65 trillion, or 4%. It will be a struggle to refinance at this rate. This week, the government is refinancing at 4.75% (a new ten year gilt offering). Third, it looks like she will try to raise taxes. Wise commentators are shaking their heads and using words like inevitable. But is this even possible? Perhaps the country has been squeezed dry. The Laffer Curve Arthur Laffer (who is still going, aged 85) drew the attention of the Nixon/Ford administration to the curve in 1974 and it was the intellectual justification for Reagan era tax cuts. As everyone probably knows, it says that after a certain point (the cusp of the curve) tax rate increases have a negative effect on revenues. By contrast, tax rate cuts can increase revenues, (the point popular with right-leaning politicians). Looking at the reported political leanings of today’s college lecturers, I suspect that the Laffer Curve is not taught at all. Today’s economic advisors appear to think that the only driver of economic policy is to promote fairness via redistribution. If this is a correct interpretation, it is little wonder that the government and civil service have such a struggle to find...