Why are Brexiteers rubbish at making the economic case for Brexit? On a whole range of things from three pin plugs to driving on the left, the UK is so often the odd man out in Europe. So why shouldn’t Britain be better off making its own laws and regulations, instead of making do, as we have done for the last 50 years, with trying to fit our sprawling messy economic life into a one-size-fits-all framework cooked up in Brussels kitchens over too much midnight oil?

We have heard a lot of talk recently about the Single Market being a British...