William Stanley Jevons in the context of "Léon Walras"

In economics, standard of deferred payment is a function of money. It is the function of being a widely accepted way to value a debt, thereby allowing goods and services to be acquired now and paid for in the future.

The 19th-century economist William Stanley Jevons, influential in the study of money, considered it to be one of four fundamental functions of money, the other three being medium of exchange, store of value, and unit of account. However, most modern textbooks now list only the other three functions, considering standard of deferred payment to be subsumed by the others.

Economic sociology is the study of the social cause and effect of various economic phenomena. The field can be broadly divided into a classical period and a contemporary one, known as "new economic sociology".

The classical period was concerned particularly with modernity and its constituent aspects, including rationalisation, secularisation, urbanisation, and social stratification. As sociology arose primarily as a reaction to capitalist modernity, economics played a role in much classic sociological inquiry. The specific term "economic sociology" was first coined by William Stanley Jevons in 1879, later to be used in the works of Émile Durkheim, Max Weber and Georg Simmel between 1890 and 1920. Weber's work regarding the relationship between economics and religion and the cultural "disenchantment" of the modern West is perhaps most representative of the approach set forth in the classic period of economic sociology.

The tendency of the rate of profit to fall (TRPF) is a theory in the crisis theory of political economy, according to which the rate of profit—the ratio of the profit to the amount of invested capital—decreases over time. This hypothesis gained additional prominence from its discussion by Karl Marx in Chapter 13 of Capital, Volume III, but economists as diverse as Adam Smith, John Stuart Mill, David Ricardo and William Stanley Jevons referred explicitly to the TRPF as an empirical phenomenon that demanded further theoretical explanation, although they differed on the reasons why the TRPF should necessarily occur. Some scholars, such as David Harvey, argue against the TRPF as a quantitative phenomenon, arguing it is an internal logic driving the movement of capital itself.

Geoffrey Hodgson stated that the theory of the TRPF "has been regarded, by most Marxists, as the backbone of revolutionary Marxism. According to this view, its refutation or removal would lead to reformism in theory and practice". Stephen Cullenberg stated that the TRPF "remains one of the most important and highly debated issues of all of economics" because it raises "the fundamental question of whether, as capitalism grows, this very process of growth will undermine its conditions of existence and thereby engender periodic or secular crises."

Richard Cantillon (French: [kɑ̃tijɔ̃]; 1680s – May 1734) was an Irish-French economist and author of Essai Sur La Nature Du Commerce En Général (Essay on the Nature of Trade in General), a book considered by William Stanley Jevons to be the "cradle of political economy". Although little information exists on Cantillon's life, it is known that he became a successful banker and merchant at an early age. His success was largely derived from the political and business connections he made through his family and through an early employer, James Brydges. During the late 1710s and early 1720s, Cantillon speculated in, and later helped fund, John Law's Mississippi Company, from which he acquired great wealth. However, his success came at a cost to his debtors, who pursued him with lawsuits, criminal charges, and even murder plots until his death in 1734.

Essai remains Cantillon's only surviving contribution to economics. It was written around 1730 and circulated widely in manuscript form, but was not published until 1755. His work was translated into Spanish by Gaspar Melchor de Jovellanos, probably in the late 1770s, and considered essential reading for political economy. Despite having much influence on the early development of the physiocrat and classical schools of thought, Essai was largely forgotten until its rediscovery by Jevons in the late 19th century. Cantillon was influenced by his experiences as a banker, and especially by the speculative bubble of John Law's Mississippi Company. He was also heavily influenced by prior economists, especially William Petty.

Friedrich von Wieser (German: [fɔn ˈviːzɐ]; 10 July 1851 – 22 July 1926) was an early (so-called "first generation") economist of the Austrian School of economics. Born in Vienna, the son of Privy Councillor Leopold von Wieser, a high official in the war ministry, he first trained in sociology and law. In 1872, the year he took his degree, he encountered Austrian-school founder Carl Menger's Grundsätze and switched his interest to economic theory. Wieser held posts at the universities of Vienna and Prague until succeeding Menger in Vienna in 1903, where along with his brother-in-law Eugen von Böhm-Bawerk he shaped the next generation of Austrian economists including Ludwig von Mises, Friedrich Hayek and Joseph Schumpeter in the late 1890s and early 20th century. He was the Austrian Minister of Commerce from August 30, 1917, to November 11, 1918.

Wieser is renowned for two main works, Natural Value, which carefully details the alternative-cost doctrine and the theory of imputation; and his Social Economics (1914), an ambitious attempt to apply it to the real world. His explanation of marginal utility theory was decisive, at least terminologically. It was his term Grenznutzen (building on von Thünen's Grenzkosten) that developed into the standard term "marginal utility", not William Stanley Jevons's "final degree of utility" or Menger's "value". His use of the modifier "natural" indicates that he regarded value as a "natural category" that would pertain to any society, no matter what institutions of property had been established.