Conclusion

Compared to other fields, economics is still a very young science. Merely two hundred and sixty-seven years have passed since the publication, as encyclopaedia papers, of Quesnay’s work. If economic analysis pertains to the realm of macroeconomics, it is not utopian to believe that the human can discover the laws of a system that itself has created. Classical economists and Keynes set out to unveil these structural laws, whose nature is logical-conceptual. The history of economic thought can contribute to the development of economic analysis by emphasizing the logical thread linking the conceptual elaborations of the authors whose ideas have marked the origin and the evolution of economics. At the same time, the recent discoveries by Schmitt's approach to economics provide the key to a new interpretation of the contributions of the past.