After the crisis of Fordism, the Italian and international debate about economic and territorial development has focused attention on models that consider the territory as a determining factor and a differential value. During the Fifties and Sixties one of the most popular models of industrial localization was that of F. Perroux, which gave primacy to large enterprises able to determine, in undeveloped areas, the effects of development poles, agglomeration processes of enterprises, new enterprise and innovation. During the Seventies, processes of decentralization and urban production took place. In this period, the Industrial District Model (IDM) theorized by A. Marshall in the United Kingdom in the second half of the nineteenth century –...