The movement was particularly dominated by François Quesnay (1694–1774) and Anne-Robert-Jacques Turgot (1727–1781). It immediately preceded the first modern school, classical economics, which began with the publication of Adam Smith's The Wealth of Nations in 1776.
The most significant contribution of the Physiocrats was their emphasis on productive work as the source of national wealth. This is in contrast to earlier schools, in particular mercantilism, which often focused on the ruler's wealth, accumulation of gold, or the balance of trade. At the time the Physiocrats were formulating their ideas, economies were almost entirely agrarian. That is presumably why the theory considered only agricultural labor to be valuable. Physiocrats viewed the production of goods and services as consumption of the agricultural surplus, since the main source of power was from human or animal muscle and all energy was derived from the surplus from agricultural production.
The perceptiveness of the Physiocrats' recognition of the key significance of land was reinforced in the following half-century, when fossil fuels had been harnessed through the use of steam power. Productivity increased manyfold. Railways, and steam-powered water supply and sanitation systems, made possible cities of several millions, with land values many times greater than agricultural land. Thus, whilst modern economists also recognise manufacturing as productive and wealth-creating, the underlying principles laid down by the Physiocrats remain valid. Physiocracy also has an important contemporary relevance in that all life remains dependent on the productivity of the raw soil and the ability of the natural environment to renew itself.
Historian David B. Danbom explains, "The Physiocrats damned cities for their artificiality and praised more natural styles of living. They celebrated farmers." They called themselves économistes, but are generally referred to as physiocrats to distinguish them from the many schools of economic thought that followed them.
 PrecursorsPhysiocracy is an agrarianist philosophy. In the late Roman Republic, the dominant senatorial class was not allowed to engage in banking or commerce but relied on their latifundia, large plantations, for income. They circumvented this rule through freedmen proxies who sold surplus agricultural goods.
After the decline of the Roman Empire, de-urbanization led to commerce ceasing and trade declining throughout most of western Europe. Economies became centered around agricultural manors where warrior-landlords, the medieval nobility, collected rent from their serfs in the form of produce. This was the dominant economic system until trade began to revive in the Late Middle Ages, fostering the rise of the merchant class.
Another inspiration came from China's economic system, then the largest in the world. Chinese society broadly distinguished four occupations, with scholar-bureaucrats, who were also agrarian landlords, at the top and merchants at the bottom (because they did not produce but only distributed goods made by others). Leading physiocrats like François Quesnay were avid Confucianists who advocated China's agrarian policies. Some scholars have advocated connections with the school of Agriculturalism, which promoted utopian communalism.
 HistoryPierre Le Pesant, sieur de Boisguilbert served as a member of Louis XIV's local administration of Paris, and wrote pamphlets and booklets on subjects related to his work: taxation, grain trade, and money. Le Pesant asserted that wealth came from self-interest and markets are connected by money flows (i.e. an expense for the buyer is revenue for the producer). Thus he realized that lowering prices in times of shortage – common at the time – is dangerous economically as it acted as a disincentive to production. Generally, Le Pesant advocated less government interference in the grain market, as any such interference would generate "anticipations" which would prevent the policy from working. For instance, if the government bought corn abroad, some people would speculate that there is likely to be a shortage and would buy more corn, leading to higher prices and more of a shortage. This was an early example of advocacy of free trade. In anonymously published tracts, Vauban proposed a system known as La dîme royale: this involved major simplification of the French tax code by switching to a relatively flat tax on property and trade. Vauban's use of statistics contrasted with earlier empirical methods in economics.
Around the time of the Seven Years' War between France and England (1756-63), the physiocracy movement grew. Several journals appeared, signaling an increasing audience in France for new economic ideas. Among the most important were the Journal Œconomique (1721–72), which promoted agronomy and rational husbandry and the Journal du commerce (1759–62), which was heavily influenced by the Irishman Richard Cantillon (1680–1734), both dominated by physiocrats; the Journal de l'agriculture, du commerce et des finances (1765–74) and the Ephémérides du citoyen (1767–72 and 1774–76). Also, de Gournay (1712–59), the Intendant du commerce, brought together a group of young researchers including François Véron Duverger de Forbonnais (1722–1800) and one of the two most famous physiocrats, Anne-Robert-Jacques Turgot (1727–81). The other, François Quesnay (1694–1774), was among those writing prolifically in contemporary journals.
In the 19th century Henry George in the United States advocated the collection of land rent as the primary if not the sole source of public revenue.
 Tableau économiqueThe Tableau économique or Economic Table is an economic model first described by François Quesnay in 1759, which laid the foundation of the Physiocrats’ economic theories.
The model Quesnay created consisted of three economic agents: the "proprietary" class consisted only of landowners; the "productive" class consisted of agricultural laborers; the "sterile" class was made up of artisans and merchants. The flow of production and/or cash between the three classes originated with the proprietary class because they owned the land and bought from both of the other classes.
 Natural OrderThe Physiocrats thought there was a "Natural order" that allowed human beings to live together. Men did not come together via a somewhat arbitrary "social contract". Rather, we have to discover the laws of the natural order that will allow individuals to live in society without losing significant freedoms.
 Individualism and laissez-faireThe Physiocrats, especially Turgot, believed that self-interest is the motivation for each segment of the economy to play its role. Each individual is best suited to determine what goods he wants and what work would provide him with what he wants out of life. While a person might labor for the benefit of others, he will work harder for his own benefit; however, each person's needs are being supplied by many other people. The system works best when there is a complementary relationship between one person's needs and another person's desires, and trade restrictions place an unnatural barrier to achieving one's goals.
 Private propertyNone of the theories concerning the value of land could work without strong legal support for the ownership of private property. Combined with the strong sense of individualism, private property becomes a critical component of the Tableau's functioning.
 Diminishing returnsTurgot was one of the first to recognize that “successive applications of the variable input will cause the product to grow, first at an increasing rate, later at a diminishing rate until it reaches a maximum.” This was a recognition that the productivity gains required to increase national wealth had an ultimate limit, and, therefore, wealth was not infinite.
 Investment capitalBoth Quesnay and Anne Robert Jacques Turgot, Baron de Laune recognized that capital was needed by farmers to start the production process, and both were proponents of using some of each year’s profits to increase productivity. Capital was also needed to sustain the laborers while they produced their product. Turgot recognizes that there is opportunity cost and risk involved in using capital for something other than land ownership, and he promotes interest as serving a “strategic function in the economy.”
 See also
|Wikisource has the text of the 1911 Encyclopædia Britannica article Physiocratic School.|
- Classical economics
- Classical liberalism
- Free market
- Jeffersonian democracy
- Land value tax
- Steiner (2003) p62
- Why Americans Value Rural Life by David B. Danbom
- Byrd, 34
- Derk Bodde, CHINESE IDEAS IN THE WEST
- Maverick, Lewis A. (1938). "Chinese Influences Upon the Physiocrats". Economic History 3.
- Steiner (2003) p61
- Henry William Spiegel (1983) The Growth of Economic Thought, Revised and Expanded Edition, Duke University Press. p.189
- A history of economic doctrines from the time of the physiocrats to the present day[page needed]
- Spiegel (1983) p.195
- Spiegel (1983) p.196
- Byrd, Robert (1995). The Senate of the Roman Republic. US Government Printing Office Senate Document 103–23.
- Henry William Spiegel (1983) The Growth of Economic Thought, Revised and Expanded Edition, Duke University Press
- Yves Charbit; Arundhati Virmani (2002) The Political Failure of an Economic Theory: Physiocracy, Population, Vol. 57, No. 6. (Nov. - Dec., 2002), pp. 855–883.
- A. L. Muller (1978) Quesnay's Theory of Growth: A Comment, Oxford Economic Papers, New Series, Vol. 30, No. 1., pp. 150–156.
- Steiner, Phillippe (2003) Physiocracy and French Pre-Classical Political Economy in eds. Biddle, Jeff E, Davis, Jon B, & Samuels, Warren J. A Companion to the History of Economic Thought. Blackwell Publishing, 2003.
- The History of Economic Thought Website, The New School of Social Research. 6 Feb. 2006
- Tableau Économique - Modern view
- A History of Economic doctrine from the time of the Physiocrats to the present day - Gide, Charles and Rist, Charles. 1915