However, the scope had expanded with alacrity to encompass manifold antitrust law issues, and yet the investigation of the issue of monopoly remained ancillary for the purpose of many of the articles. Despite the broad range of antitrust issues that the Antitrust Project addressed, the leitmotif of most of the articles was that monopoly power could not be extended through a laundry list of "abuses," such as tying arrangements and resale price maintenance. In fact, this was essentially the explicit purpose of Director and Levi (1956)—an umbrella article that incorporated the major premises of other individual specialized Antitrust Project articles. … If there is a 'Chicago school' of antitrust thought, its manifesto is presumably the article by Levi and Director on Trade Regulation" (1963, 55-56).

Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin, loc. 1132