UK long-term borrowing costs could halve chancellor’s budget headroom

Yield on 30-year gilts highest since 1998 as rout triggered by global factors underlines tricky backdrop John Healey facesBusiness live – latest updatesThe chancellor’s headroom against Labour’s fiscal rules could be almost halved at his first budget if the current global bond sell-off persists into the autumn, economists say.The UK’s long-term borrowing costs jumped to their highest level since early 1998 on Tuesda…