It is more than three years since Bank of England governor Mark Carney was accused by Labour MP and Treasury Select Committee member Pat McFadden of behaving like ‘an unreliable boyfriend, one day hot, one day cold’ in his hints about forthcoming interest-rate rises. And it’s more than a decade since the last time the official UK bank rate actually moved upwards: the only shift since McFadden’s remark has been a cut from 0.5