An updated study by the prominent economists Emmanuel Saez and Thomas Piketty shows that the top 1 percent of earners took more than one-fifth of the country’s total income in 2012, one of the highest levels recorded in the century that the government has collected the relevant data.
The top 10 percent of earners took more than half of all income. That is the highest recorded level ever.
The figures underscore that even after the recession the country remains in a kind of new Gilded Age, with income as concentrated as it was in the years that preceded the Great Depression, if not more so.
High stock prices, rising home values and surging corporate profits have buoyed the recovery-era incomes of the rich, with the incomes of the rest still weighed down by high unemployment and stagnant wages for many blue- and white-collar workers.
“These results suggest the Great Recession has only depressed top income shares temporarily and will not undo any of the dramatic increase in top income shares that has taken place since the 1970s,” Mr. Saez, of the University of California, Berkeley, wrote in his analysis of the data.
The income share of the top 1 percent of earners in 2012 returned to the same level as before both the Great Recession and the Great Depression: just above 20 percent, jumping to about 22.5 percent in 2012 from 19.7 percent in 2011.