By Paul Krugman

“The last few decades have been tough for many American workers, but especially hard on those employed in retail trade — a category that includes both the sales clerks at your local Walmart and the staff at your local McDonald’s. Despite the lingering effects of the financial crisis, America is a much richer country than it was 40 years ago. But the inflation-adjusted wages of non-supervisory workers in retail trade — who weren’t particularly well paid to begin with — have fallen almost 30 percent since 1973.”  https://www.nytimes.com/2013/12/02/opinion/krugman-better-pay-now.html