CBO data satisfy most of these criteria but only go back to 1979; [29] the historical Census family income data series and Piketty - Saez income concentration data cover a longer time span but use less - comprehensive measures of income and do not adjust for changes in the size and composition of households. (cbpp.org)
In the late 1970s, probably first as a consequence of the highest real interest rates in U.S. history, engineered by Paul Volcker's Federal Reserve Bank, the United States began a process of income concentration that has continued until now for reasons that are hotly debated. (carnegieendowment.org)
Neoliberal policies over the past three decades have generated a remarkable income concentration (for which read «inequality») but have brought about mediocre economic growth. (blog.politics.ox.ac.uk)