"On Corporate Capitalism in America," The Public Interest, Fall 1975.

Excerpt:

Whether for good or evil—and one can leave this for future historians to debate–the large corporation has gone “quasi-public,” i.e., it now straddles, uncomfortably and uncertainly, both the private and public sectors of our “mixed economy.” In a sense one can say that the modem large corporation stands to the bourgeois-individualist capitalism of yesteryear as the “imperial” American polity stands to the isolated republic from which it emerged: Such a development may or may not represent “progress,” but there is no turning back.

Online:
Public Interest Archive (National Affairs) [pdf]