Demystifying the purple haze at the Canadian pot producer.

UK prime minister will pledge ‘lowest G20 rate of corporation tax’ at UN assembly

Le Maire says EU will not negotiate with US ‘with a gun to our head’

International watchdogs consider new capital safeguards for growing market

G20 finance chiefs at annual meeting call for further dialogue and action

World’s two biggest trading economies to use international framework for trade talks

Rosy world outlook clouded by threat of retaliatory trade barriers

Failure to support green initiatives puts influential advisers under spotlight

President calls for ‘new phase’ of openness

Trade organisation had unsuccessfully lobbied Macri government to change decision

Report highlights G20’s $135tn debt pile and says good economic times are fuelling risks

Leaders’ private talks at G20 were only attended by Russian president’s interpreter

German chancellor uses TV address to reject calls for Hamburg mayor to quit

Merkel’s Bundestag rival falls short in contest to be the toughest on crime