A statistical method for measuring "mariginal utility" and testing the justice of a progressive income tax / Irving Fisher. Statistical method for measuring "marginal utility." Fisher, Irving, 1867-1947. American Economic Association. Income tax. Marginal utility. 336.2 FIS Cover title. "Reprinted from Economic essays in honor of John Bates Clark." Includes bibliographical references. [New York?] : Published on behalf of the American Economic Association by the Macmillan Co., 1927. 1927. 1927 Text p. 157-193 : eng