When markets tighten before central banks do: Jefferson and Mann

Serguey Asael Shinder02 October 2026, 07:482 min read

Two speeches on 1 October, one in Virginia and one for a London investor conference, dealt with the same problem from opposite sides: bond yields have risen further than central banks have moved. What each speaker made of it shows how differently the same market signal can be read.

The Fed: let the yields do some work. Vice Chair Philip Jefferson backed September's quarter-point increase to 3¾ to 4% and sees upside risks to inflation. But he noted that yields across the term structure have increased further since that meeting, a sign investors are reassessing the outlook, and said he and his colleagues will need to reach their own judgment, which may take more time. Read plainly, higher market rates are tightening that the Fed does not have to deliver itself, at least not immediately. Source: https://www.federalreserve.gov/newsevents/speech/jefferson20261001a.htm

The Bank of England: the yields are the wrong kind of tightening. Catherine Mann, who voted for a 25 basis point rise at the last two meetings, made the opposite argument. Swap markets price over 100 basis points of UK tightening over 12 months while the Bank's own survey of market participants expects a hold; a rising term premium explains about 24 basis points of the rise in three-year gilt yields over the year. That premium, she argued, raises nominal yields without tightening real conditions, and may partly reflect uncertainty the Bank's own communication created. Her answer is to follow through with rate rises rather than lean on the premium. Source: https://www.bankofengland.co.uk/speech/2026/october/catherine-mann-nomura-investor-conference

Why they disagree. The question underneath is what the rise in yields is made of. If it is expected policy, it is real tightening and a central bank can wait. If it is a premium for inflation risk and policy uncertainty, it can reverse quickly and does little to demand, which is Mann's case for acting. Jefferson did not decompose the US rise in his speech; Mann's own estimate for the US is a term premium of about 25 of 140 basis points, a smaller share than in the UK.

What to watch. US payrolls for September, due on 2 October, will test whether the Fed's patience holds. In the UK, the gap between swap pricing and the survey is the figure to follow: if it narrows without a hike, the premium was doing the work Mann says it cannot.