Eight of the worlds richest individuals own as much wealth as the worlds poorest 3.6 billion people, an Oxfam report has revealed as top executives, financiers, politicians and the super-rich gather in Davos, Switzerland for the World Economic Forums (WEF) annual meeting. The gap between the rich and the poor was branded obscene by the anti-poverty group, which also called for a step towards an alternative human economy that meets the needs of both the planet and its people. So who are the people holding this amount of wealth?