In recent years, especially as a result of the growing weight of China in the international economic scenario, the alarms concerning the alleged Chinese invasion of the West are multiplying: this fear is fomented, in particular, by the population consistency of the country, which has already passed 1,300 million inhabitants (in 2005) making it currently the most populated country in the world.
The population of the European countries is rapidly ageing, and this process has many social and economic consequences, especially on the labour market of the nations concerned1. One of the ways which could be followed in order to address the consequences of the decline in numbers and the ageing of the population is to act directly on the undesired demographic conditions to try and modify them. There are many factors which could drive the attempt to reverse, or at least to restrain, this process, obviously to the extent that it is effectively possible. The demographic means to catch up with the goal of a younger age structure and a higher growth rate than zero are basically two2: to increase the fertility or to increase the net migration.