For other discussions of fixed costs, Josiah Quincy, "The Railroad System of Massachusetts: An Address Delivered Before the Boston Board of Trade, Nov. 10, 1866" (Boston: Mudge & Son, 1866), particularly 25.
Thomas McCraw, Prophets of Regulation: Charles Francis Adams, Louis D. Brandeis, James M. Landis, Alfred E. Kahn (Cambridge: Harvard University Press, 1984), 9-10.
Charles Francis Adams, "Which Will Quickest Solve the Railroad Question: Force Bills or Public Opinion?", Oshkosh, Wisconsin, Sept. 3, 1875, in Charles Francis Adams, Railway Pamphlets, Stanford University Library, 7-11.
Herbert Hovenkamp, Enterprise and American Law, 1836-1937 (Cambridge, MA: Harvard University Press, 1991), 139-148.
