When I started my research on the arrival of mass marketing and mass distribution in Italy, my aim was to explain the origin of a peculiar phenomenon. Thousands of small shopkeepers were still the only traders in the 1950s, while supermarkets and department stores were already common in Europe and the United States. These small shops were usually run on a family basis, and they did not sell processed food or frozen products. Hence, there was a kind of "displacement" between the level of development enjoyed by the production industry and the backwardness of the retail trade world. …