This contribution to the study of the factors’ allocation modes of Information and Communication Technologies (ICT) by firms of emerging economies gets over the dual approach concentrated on the lack of uses of equipment and on their consequences. Authors focus on the dynamics of use, as...

The way the expresssion "applied economics" was employed changed deeply from one author to another. In this article we examine the meaning of this concept in Leon Walras' and Wassily Leontief's works regarding mathematical models of general interdependence and general equilibrium. It appears...

From the 1930s, Leontief defended the validity of input-output analysis on the basis of a very specific epistemology: operationalism. Operationalism was not proper to Leontief but it was a common epistemological reference from the 1930s to the 1950s –especially about the status of scientific...

Ragnar Frisch wrote in 1933 that "The complete macrodynamic problem, as I conceive of it, consists in describing as realistically as possible the kind of relations that exist between the various magnitudes in the Tableau Economique ., and from the nature of these relations to explain the...

This is the introductive chapter to the book "Wassily Leontief and Economics", published in February 2019 (ENS editions). Economists produce their statements and forecasts from devices articulating abstract theories with mathematical models and statistical instruments of measurement. What is the...

The equality between factor pay and marginal product is a major component of the neoclassical paradigm. The article begins with a brief historical review of this principle. Follows a questioning about the relevance of this law as an argument in the social debates: does marginal product represent...

The equality between factor pay and marginal product is a major component of the neoclassical paradigm. The article begins with a brief historical review of this principle. Follows a questioning about the relevance of this law as an argument in the social debates: does marginal product represent...

Les ingénieurs économistes français avaient accueilli avec beaucoup de réticences l’œuvre de Walras. Ils ne pensaient pas que l’emploi des mathématiques puisse constituer une méthode normale même en économie politique pure. Progressivement leurs réticences s’estompèrent quand...