The Tableau économique (in French pronounced as /tablo ekɔnɔmik/) or Economic Table is an economic model first described by French economist François Quesnay in 1758, which laid the foundation of the physiocratic school of economics.[1]
Quesnay believed that trade and industry were not sources of wealth, and instead in his 1758 manuscript Tableau économique (Economic Table) argued that agricultural surpluses, by flowing through the economy in the form of rent, wages, and purchases were the real economic movers.
The model Quesnay created consisted of three economic movers. The "Proprietary" class consisted of only landowners. The "Productive" class consisted of all agricultural laborers. The "Sterile" class is made up of artisans and merchants. The flow of production and/or cash between the three classes started with the Proprietary class because they own the land and they buy from both of the other classes. The process has these steps (consult Figure 1).
Figure 1 Production Flow Diagram for Quesnay's Tableau (4)
The Tableau shows the reason why the Physiocrats disagreed with Richard Cantillon about exporting food. The economy produces a surplus of food, and neither the farmer nor the artisan can afford to consume more than a subsistence level of food. The landlord is assumed to be consuming at a level of satiation; therefore, he cannot consume any more. Since food cannot be stored easily, it is necessary to sell it to someone who can use it. This is where the merchant provides value.
The merchant is not a source of wealth, however. The Physiocrats believed that “neither industry nor commerce generates wealth.”[2] A “plausible explanation is that the Physiocrats developed their theory in light of the actual situation of the French economy…”[2] France was an absolute monarchy with the land owners constituting 6-8% of the population and owning 50% of the land. (5, p. 859) Agriculture contributed to 80% of the country’s wealth,[2] and the non-land owning segment of the population “practises a subsistence agriculture that produces the essential minimum, with virtually all income being absorbed by food requirements.”[3] Additionally, exports consisted mostly of agricultural-based products, e.g. wine.[3] Given the massive effect of agriculture on France’s economy, it was more likely they would develop an economic model that used it to the king’s advantage.
The Physiocrats were at the beginning of the anti-mercantilist movement. Quesnay’s argument against industry and international trade as alternatives to his doctrine is twofold. First, industry produces no gain in wealth; therefore, redirecting labor from agriculture to industry will in effect decrease the nation’s overall wealth. Additionally, population expands to fill available land and food supply; therefore, population must go down if the use of land does not produce food. Second, the basic premise of the Mercantilists is that a country must export more than it imports to gain wealth, but that assumes it has more of a tradeable resource than it needs for internal consumption. France did not have a colony with the ability to produce finished or semi-finished goods like England (e.g. India) or Holland (e.g. North America, Africa, South America). Its main colonial presence was in the Caribbean, southern North America, and southeast Asia, and like France, the colonies had agricultural-based economies. The only good which France had in enough excess to export was food; therefore, international trade based on industrial production would not yield as much wealth.
Quesnay was not anti-industry, however. He was just realistic in his assessment that France was not in good position to incubate a strong industrial market. His argument was that artisans and manufacturers would come to France only in proportion to the size of the internal market for their goods.[4] Quesnay believed “a country should concentrate on manufacturing only to the extent that the local availability of raw materials and suitable labor enabled it to have a cost advantage over its overseas competitors.”[4] Anything above that amount should be purchased through trade.
The tableau économique is credited as the "first precise formulation" of interdependent systems in economics and the origin of the theory of the multiplier in economics.[5] An analogous table is used in the theory of money creation under fractional-reserve banking by relending of deposits, leading to the money multiplier.
The wage-fund doctrine was derived from the tableau, then later rejected.
Karl Marx used Quesnay's Tableau as a basis for his theory of circulation in Capital volume 2.