"We shouldn’t be looking at the cost of ending poverty as a percentage of total world income, but rather as a percentage of the income of all the people who are not poor; say, those who live on more than double the poverty line. In 1990, it would have cost 12.9% of their total income to end poverty. In 2013, it would have cost only 3.9%. According to this measure, our capacity to end poverty has improved by a factor of 3.31."
"We shouldn’t be looking at the cost of ending poverty as a percentage of total world income, but rather as a percentage of the income of all the people who are not poor; say, those who live on more than double the poverty line. In 1990, it would have cost 12.9% of their total income to end poverty. In 2013, it would have cost only 3.9%. According to this measure, our capacity to end poverty has improved by a factor of 3.31."