Tim Martin, Chairman and Founder, JD Wetherspoon

The battle for Britain's future, in or out of the European Union, will be settled in June. Advocates of a vote to remain, led by prime minister David Cameron, see economic arguments as their most potent weapon, Brexit, they claim, will come at a crippling cost in terms of jobs, investment and growth. Many business leaders seem to agree but by no means all. Stephen Sackur's guest is Tim Martin, founder and chairman of the pub chain JD Wetherspoon. Could Brexit make economic sense?