Davos World Economic Forum key players

Business and global political leaders are heading for the Swiss ski resort of Davos for the 2015 World Economic Forum.

Delegates will include 40 heads of state and government, and more than 2,500 leaders from business, entertainment and charities.

BBC News outlines some of the key players - in 60 seconds.

Video produced by Michael Hirst, pictures courtesy of Getty Images

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