Is urban space, as a concentric agglomeration in expansion, in contraction, which duplicates itself, the solution of a dierential system ? Does urban geometry come from "chaotic" mutations, from cloning and aggregating districts ? And do they project their metrics on space ? Then where does its...

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...

This paper is a reflection on the use of quantitative methods to forecast the macroeconomic effects of the COVID-19 pandemic. It was the subject of a communication at the webinar organized by the FSJES of Salé (Mohammed V University - Rabat) on June 23, 2020 under the theme "Quantitative...

the aim of this paper is to explain the effect of "Subrime" crisis on credit default swap markets. After the problems of CDO's insttruments, protection buyers use classical credit derivatives instruments such CDS contracts.

Without any pretension of exhaustiveness, this manuscript revisits, in a historical approach, the main concepts that have contributed to forge economic science in the last five centuries. In this respect, It retraces the great schools of thought and doctrines that have developed successively or...

– La domination d’une théorie classique – à définir et à connaître – a faussé la représentation de l’économie de référence, « capitaliste », a entaché l’élaboration théorique du socialisme, la construction du socialisme, la conception et la pratique des réformes....