Britain's EU membership 'mutually beneficial': Draghi

European Central Bank chief Mario Draghi pressed the case for Britain to stay in the EU on Thursday, warning that doubts over its membership are already buffeting the markets. Draghi vowed to keep touting the benefits of Britain's EU membership ahead of a knife-edge June 23 vote that could lead to the country's exit, or Brexit, with far-reaching economic consequences. "Let me say unequivocally that we view the participation of the UK to the European Union as mutually beneficial and we will conti