Economist and mathematician born in Liverpool, UK September 1, 1835, and died near Hastings (Sussex) on August 13, 1882. In his book the theory of political economy (1871), he/she developed the theory of marginal utility, where he/she worked alone at findings similar to those made by Karl Menger in Vienna (1871) and Léon Walras in Switzerland (1874), which marked the opening of a new period in the history of economic thought.
Jevons abandoned his studies of natural sciences at the University College of London, in 1854, to take charge of a place of experimentation in Sydney, Australia; There he/she acquired interest in political economy, and social studies. When he/she returned to England in 1859, soon completed two of the most original and enlightening work, "General mathematical theory of political economy" (1862) and "A serious decline in the value of gold" (1863). In the first he/she underlined that you what must subsequently be known as marginal theory of value, which sets utility is the main determinant of the value of the goods; in fact, it showed the relationship between the utility and the value in mathematical terms. As to the second, in the explains how you must start to measure the price index in the period that followed the massive discoveries of gold in California and Australia, and where was one of the major contributions to the theory of numbers indexed so far published. However, it wasn't until the publication of the problem of coal (1865), in which it drew attention to the gradual loss of Great Britain coal reserves, where received a public recognition of his work.
In 1866, Jevons was proposed to take up a Chair in the Owens School of political economy, in Manchester. He/She later moved to the University College of London, in 1876. Part of their work in scientific and logical methods, the most important of them was principles of Science (1874); In addition, other notable works were the theory of political economy (1871); The State in relation to labour (1882); and, published posthumously in 1905, principles of economics.