Editing Input–output model (section)

==Origins==
[[Francois Quesnay]] had developed a cruder version of this technique called [[Tableau économique]], and [[Léon Walras]]'s work ''Elements of Pure Economics'' on [[general equilibrium theory]] also was a forerunner and made a generalization of Leontief's seminal concept.<ref>{{cite book |title=Éléments d'économie politique pure, ou théorie de la richesse sociale |url=https://archive.org/details/lmentsdconomiep02walrgoog |trans-title=Elements of Pure Economics, or The Theory of Social Wealth |first=L. |last=Walras |year=1874 |publisher=L. Corbaz }}</ref>

[[Alexander Bogdanov]] has been credited with originating the concept in a report delivered to the [[First Conference on Scientific Organization of Labour|All Russia Conference on the Scientific Organisation of Labour and Production Processes]], in January 1921.<ref name=Belykh>{{cite journal|last=Belykh|first=A. A.|title=A Note on the Origins of Input–Output Analysis and the Contribution of the Early Soviet Economists: Chayanov, Bogdanov and Kritsman|journal=Soviet Studies|date=July 1989|volume=41|issue=3|pages=426–429|doi=10.1080/09668138908411823}}</ref> This approach was also developed by [[Lev Kritzman]]. Thomas Remington, has argued that their work provided a link between Quesnay's tableau économique and the subsequent contributions by [[Vladimir Groman]] and [[Vladimir Bazarov]] to [[Gosplan]]'s method of [[material balance planning]].<ref name=Belykh />

Wassily Leontief's work in the input–output model was influenced by the works of the classical economists [[Karl Marx]] and [[Jean Charles Léonard de Sismondi]]. [[Karl Marx]]'s economics provided an early outline involving a set of tables where the economy consisted of two interlinked departments.<ref name="Planning and the Real Origins of Input–Output Analysis, 1984">{{cite journal |title=Planning and the Real Origins of Input–Output Analysis |first=D. L. |last=Clark |year=1984 |journal=Journal of Contemporary Asia |volume=14 |issue=4 |pages=408–429 |doi=10.1080/00472338485390301 }}</ref>

Leontief was the first to use a [[matrix (mathematics)|matrix]] representation of a national (or regional) economy.