Chinese Vice President Li Yuanchao at the 46th Annual Meeting of the World Economic Forum Wef in Davos Switzerland 21 January 2016 the Overarching Theme of the Meeting Which is Expected to Gather Some 2 500 Leading Politicians Un Executives Heads of Major Corporations Ngo Leaders and Artists at the Annual Four-day Gathering Taking Place From 20 to 23 January is 'Mastering the Fourth Industrial Revolution' Switzerland Schweiz Suisse Davos