SUMMARY
The general purpose of the paper is to investigate consumer's attitude towards high quality agri-food products. The research analyses PDO labelled products packaged by law in the production area. Within the same area, the Producers' Group imposes the use of the Consortium label as a quality sign. As consequence, collective labels as well are find on a product packaging, by virtue of the fact that not only they graphically and symbolically represent quality, but they also inform customers about the properties of a specific PDO good. Moreover, on the same package other labels (industrial and private ones) are displayed on the same package. At this purpose, the research analysis of the customers' perception of such particular labels combination focusing the case of the ready-sliced Parma ham. The analysis gives the opportunity of evaluating, from an economic perspective, aspects related to the use of multi-labelling strategy.