Has Brexit slowed down the economy? Labour’s leadership candidates aren’t waiting to find out, because they already know what Britain needs: a massive spending splurge.

The first hard numbers on what happened to jobs and spending in July are due to come out this week, which will put some facts into what is now a completely speculative debate. As the data emerges, we might get a clearer idea of what the trade-offs are for Philip Hammond in his first budget.