The New York Times | "This reorganization of employment is playing a big role in keeping a lid on wages — and in driving income inequality — across a much broader swath of the economy than globalization can account for," writes Economic Scene columnist Eduardo Porter.
Cites recent study by Lawrence Katz of Harvard and Alan Krueger of Princeton, which concluded that temp agency workers, on-call workers, contract workers, and freelancers accounted for 94% of U.S. employment growth from 2005 to 2015. View this research»
Also cites Katz on the pay gaps between firms as an important source of inequality: "Overall, Professor Katz estimates, the sorting of workers into high- and low-end employers accounts for a quarter to a third of the increase of wage inequality in the United States since 1980."