… is from page 134 of Thomas Sowell’s 2008 volume, Economic Facts and Fallacies:
Concern over poverty is often confused with concern over differences in income, as if the wealth of the wealthy derives from, and is the reason for, the poverty of the poor. But this is just one of the many forms of the zero-sum fallacy. Since the United States contains several times as many billionaires as any other country, ordinary Americans would be among the most poverty-stricken people in the world if the wealth of the wealthy derives from the poverty of the poor. Conversely, billionaires are much rarer in the most poverty-stricken parts of the world.