Chapter 8: Looking Backward, footnote 7, page 328 Ch8 fn. 7 p. 328 Tags: Scholarly Articles, Histories and Biographies, Corruption, Anti-Monopoly, Ideology Hudson, Railways and the Republic, 55. William W. Sharkey, The Theory of Natural Monopoly (New York: Cambridge University Press, 1982), 14, 26. Richard A. Posner, "Natural Monopoly and Its Regulation," Stanford Law Review, Vol. 21, No. 3 (Feb., 1969), 570.