Eight men are as rich as half the world. The charity Oxfam said the billionaires have as much money as the 3.6 billion poorest people. The richest man is Microsoft founder Bill Gates. He is worth $75 billion. The report is called 'An Economy for the 99 Per Cent'. Oxfam said: "It shows that the gap between rich and poor is far greater than [we thought]." It added that it is unfair that "super-rich" people avoid paying tax. Oxfam said it was shocking that so few people have so much money. One in 10 people survive on less than $2 a day. Inequality means millions of people are in poverty. Oxfam said: "Across the world, people are being left behind. Their wages are [not going up] yet…bosses take home million-dollar bonuses." It said governments only care about the rich. An economist said the report was unfair because Oxfam was attacking rich people.