“There’s growing evidence that market power does indeed have large implications for economic behavior—and that the failure to pursue antitrust regulation vigorously has been a major reason for the disturbing trends in the economy.”

Krugman, Paul, ‘Challenging the Oligarchy,’ a review of Robert B. Reich’s, Saving Capitalism: For the Many, Not the Few, (Knopf, 2016), in The New York Review, December 17, 2015, pp: 16-20.