ABSTRACT
The first area of economic theory to be revolutionized through the rediscovery of the marginal principle was the theory of value. Three brilliant men, William Stanley Jevons (1835-82), Carl Menger (1840-1925), and Leon Walras (1834--1910), working, respectively, in England, Austria, and Switzerland, independently formulated a theory of exchange value based on the principle of diminishing utility. Jevons's work, The Theory of Political Economy (1871), was preceded by Notice of a General Mathematical Theory of Political Economy. Menger's Grundsatze der Volkswirtschaftslehre was also published in 1871, and Walras's Elements d'economie politique pure ou theorie de fa richesse sociafe, was published in two parts in 1874 and 1877.
