During the 1980s, wage inequality increased dramatically and the American economy lost many high wage, low- to medium-skill jobs, which had provided middle class incomes to less skilled workers. Increasingly, less skilled workers seemed restricted to low wage jobs lacking union or other...

A leading explanation for the rapid growth in U.S. wage inequality in the last twenty years, consistent with both human capital and postindustrial theories, is that advanced technology has increased job skill requirements and reduced the demand for less-skilled workers. Krueger's study (1993)...

During the 1980s, wage inequality increased dramatically, and the economy lost many high-wage jobs that had provided middle-class incomes to less skilled workers, increasingly restricting these workers to low-wage jobs lacking union or other institutional protections. A number of scholars have...