The main idea is to think of a "geography of the economic thought" (there are production areas of economic thought and areas of reception). It is well known as the problem of international transmission of the economic theories. Focus of this study is the distinctiveness of the processes of diffusion of economic ideas across geographic or political areas. Spengler J., "Notes on international transmission of economic ideas", History of Political Economy, 1970 For Italy: Barucci P. (ed.), _Le frontiere dell'economia politica. Gli economisti stranieri in Italia: dai mercantilisti a Keynes_. Firenze: Polistampa, 2003 Stefano Spalletti