Middle-income jobs have been declining over the past decades, leaving behind a polarized workforce, with one group of people doing high-skilled, well remunerated work, and another growing set, that are in low-wage, relatively economically insecure positions, that don't have much of a career ladder. Automation, globalization, and the shrinking role of unions have all contributed to the hollowing out of middle-wage jobs, exacerbating wage inequality among American workers. In the current econom...
