ABSTRACT
The economic growth of a region is measured by the degree of variations in the time of the actual demand or, in other words, of the level of economic activity. The social performance of a region thus partly depends on internal factors, and partly on external factors, in relation to its degree of openness towards the external world. All regions in the world are more or less open towards the external world and are thus part of the interdependent relationships. Demographic growth, together with rising expectations, will thus create an unbridled increase of the potential demand. The present growth of the worldwide production is insufficient or even ridiculously small, to meet this demand. The disparities, among the several regions, of the internal factors that condition the level of economic activity, are important. These disparities are reflected into the system of the relative prices, including the price for the production factors.
