ケネー「経済問題」における価格上昇の効果

抄録

Quesnay’s Problème Économique explains the effects of price increases using his Tableau of distribution. We analyze these effects by converting the numbers presented in the Tableau and the text of Problème Économique into several Input-Output tables. The questionnaire addressed these effects through three distinct steps. First, Quesnay outlines the changes in the recovery (reprise) of annual advances by the productive class and the corresponding changes in landowners’ revenues, which rise from 400 million livres to 570 million livres. Second, he considers the equalization of prices in transactions, resulting in a further increase of landowners’ revenue to 805 million livres, representing a profit of 235 million livres generated through price equalization. Lastly, the demand-side factors, including foreign trade, are examined. Quesnay elaborates on expenditures made by the productive and sterile classes, expenses derived from indirect taxes, and the export and import of domestic and foreign products. In the first and second steps, Quesnay’s primarily emphasizes the impact on landowners’ revenue. However, the benefits for productive and sterile classes are considered during the third step. By transforming Quesnay’s numerical examples from Problème Économique into Input-Output tables, we could verify the consistency of transactions described by Quesnay and clearly illustrate the three-step explanation process. While Quesnay’s reasoning proved logical, some numerical inconsistencies were observed in his examples.