Davos 2020: What is the World Economic Forum and is it elitist?

Some of the world’s top business people and politicians – plus a smattering of celebrities – will gather in Davos, Switzerland, for the World Economic Forum (WEF) this week. US President Donald Trump, teen climate activist Greta Thunberg and Uber boss Dara Khosrowshahi are among the guests. But what is the jet-set event for and is it elitist?