The prosperity concentration has increased in 2018, 26 billionaires now have as much money as the poorest half of mankind, and Monday criticized the NGO Oxfam, which calls on states to levy the tax richer.
"The ever-growing gap between rich and poor hampers the fight against poverty, hurts the economy and feeds global anger," said Winnie Byanyima, executive director of Oxfam International, in the press release.
Governments "must ensure that companies and the rich pay their share of taxes," she added when Oxfam's traditional annual report on global disparities was released to the World Economic Forum (WEF) held until Friday in Davos.
According to figures from the NGO, whose methodology, which is based on data published by Forbes magazine and the bank Credit Suisse, is disputed by some economists, 26 people now have just as much money as the 3, 8 billion poorest people on the planet. In 2017 there were 43 of them.
As for the richest man in the world, Jeff Bezos, the boss of Amazon, his power reached $ 112 billion last year. But "the health budget of Ethiopia is 1% of its assets," said the NGO.
Overall, the wealth of world billionaires rose last year by $ 900 billion, at a rate of $ 2.5 billion per day, while that of the poorest half of the world's population fell by 11%, she said.
The number of billionaires has doubled since the financial crisis of 2008, Oxfam said, noting that "the rich not only have a fortune in full expansion, but also the lowest levels of tax in decades".
"If the trend were reversed, most governments would have sufficient resources to finance public services," said the NGO who believes that "wealth is particularly under-charged".
She said that on a dollar of income tax, only four cents comes from wealth taxation.
According to Oxfam, who estimates that the richest $ 7.6 trillion in taxes hide, in some countries such as Brazil or the United Kingdom, "the poorest 10% now pay higher taxes in proportion to their income than most rich people".
This report is published at a time when taxation of the largest fortunes in various countries is a reason for debate.
In France, the movement of "yellow cardigans" revived the debate about the removal of the ISF by Emmanuel Macron. In the United States, the newly elected democrat parliamentarian Alexandria Ocasio-Cortez proposed to tax 70% of the richest, with the support of Nobel laureate Paul Krugman.