Income gap growing in US as the tech boom becomes a memory

Some labor economists contend that the rise in income inequality is largely a result of the demand for skilled, college-educated workers in an ever more high-technology workplace. These skilled workers are indeed the people in Bernstein's high-end group. But David Card, a labor economist at the University of California at Berkeley, notes that the demand for high-technology workers was never greater than in the late 1990s, and yet wages rose across the board.