British Prime Minister Andy Burnham will on Friday open a new government base in Manchester dubbed "No. 10 North" in a nod to his 10 Downing Street office in London, as he seeks to shift economic decision-making away from the capital.

So-called 'King of the North' Andy Burnham is adamant he will work from Manchester - where his family lives and he used to be mayor - at least one day a week.

Andy Burnham does not have long to wait. If he wants to make a real economic difference, he should focus on the U.K.'s greatest asset: a globally significant city whose scale is…