Some want the chancellor to exploit newly flexible fiscal rules – others want a more creative approach, such as borrowing from markets

With just 12 weeks to go until his first budget, new chancellor John Healey is seeking ways to ramp up public investment, without busting the Treasury’s fiscal rules – and some economists are urging him to be bold.

As he settles into No 11 Downing Street, the former defence secretary’s most immediate challenges concern day-to-day government spending.