Ricerc@Sapienza

The contribution describes the ageing process of Italian Population – analyzed through the geographical areas of Nord-Center and South-Islands – specifying both the past and the future evolution of the phenomenon (from the 1980 to the 2040). In this paper two well-known indicators are used: the average age and the over 65 years old percentage on the overall population. In addition the study consists on obtaining two more indexes able to measure the velocity and the acceleration of the preceding of ageing phenomenon.