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The world’s 100 richest people earned enough money last year to end world extreme poverty four times over, according to a new report released by international rights group and charity Oxfam.

The $240 billion net income of the world’s 100 richest billionaires would have ended poverty four times over, according to the London-based group’s report released on Saturday. The group has called on world leaders to commit to reducing inequality to the levels it was at in 1990, and to curb income extremes on both sides of the spectrum.

The release of the report was timed to coincide with the holding of the World Economic Forum in Davos next week.

The group says that the world’s richest one percent have seen their income increase by 60 percent in the last 20 years, with the latest world financial crisis only serving to hasten, rather than hinder, the process.