The globalisation of economy and communications, quick technological progress and its social implications led to the creation of the European Research Area, an important objective for the convergence of national RD&I systems. The monitoring of convergence process is achieved, since 2000, through...

In the specialised literature there are several established models and methods for measuring the time required to fill the gap between various systems, by assessing the rate of development required to reach a certain reference level in a determined period of time. These models are known as...