According to new data, nearly 50 million of America's 243 million adults are part of the world's poorest 10 percent.
I was drawn into my pile of OECD documents and charts by a column last week by Eduardo Porter of The New York Times under the headline: "Inequality in America: The Data Is Sobering."
Historians used the Gini coefficient, a modern measure of wealth inequality, to compare disparities between the classes in the Roman Empire 150 years after the death of Christ and those in the United States today. The ancients, with their ranks of plebeians, patricians and senators, scored slightly better than we did. (more)