ABSTRACT
In the last decades, the interest of those who study political economy has been the object of great and repeated mutations. The first jolt produced the Keynesian revolution, which brought to fashion once again macroeconomic analysis and the calculations of national income. Shortly thereafter, the centre of gravity was displaced by input-output analysis, which was introduced with great success by Wassily Leontief, for the benefit of inter-industry and interregional analysis. At almost the same time, the mischievous mood that razed the fields of this science, made the study of the problems of economic development a fashionable pursuit.
