The leaders of the world’s biggest economies will descend on Manchester next year after the UK government confirmed the English city will host the Group of 20 (G20) summit. Prime Minister Andy Burnham will use his first trip to the United Nations General Assembly in New York to announce the city he led as mayor for almost a decade as the venue for the leaders summit, according to a statement on Monday from his office. The decision to choose Manchester in the northwest of England as the centre of...