Deux approches de l'économie quantitative dans l'entre-deux-guerres. L'économétrie de Ragnar Frisch face à l'empirisme de Wesley Clair Mitchell

At the beginning of the 20th century, the community of economists urged to find a new way of filling the gap between theory and reality, this rapprochement being thought in view of actual measurement. Quantitative economics was particularly developing around 1910 through two approaches: empirism and econometrics. We will focus on the business cycles research field in order to understand and analyse their common points and differences, because it appears as the favourite scope of these two main research programs of quantitative economics during the interwar years. Classification JEL : B15, B23, B41