An introspection of the evolution of any type of scientific thought becomes all the deeper as it manages to cover a longer period in time – and we procede from a known epigram, according to which the more you get into the past, the better you can see farther away… into the future. In fact, the very statistical thinking underlines the need for secular series of data, also known as chronological or historical variables, as being genuinely apt to describe a behavioral profile, whether it is that of an economy as a whole or that of a single entity or distinctive economic subject. With these two introductory remarks, the inherent chain of inquiry, past – present – future, can be invoked in any extended approach, or even an approach havin...