Vijay Govindarajan, a professor at the Tuck business school at Dartmouth and highly esteemed management consultant made much the same point in an interview I did with him for Forbes video.
Matthew Slaughter of Dartmouth's Tuck School of Business and Laura Tyson of Berkeley's Haas School of Business point out that multinational firms (which pay higher wages than non-multinationals) increased employment in America by 24% in the 1990s.