In recent years some innovations in the sector of economic solutions in the EU agreements have been questionable and certainly a subject of investigation. A comparative, precise work is needed to illustrate and shed light not only on the coordination problems that are under discussion in the sector of the agreements of the EU both from an internal and external point of view but also for the related dispute resolution mechanisms. The contentious practice also shows another very interesting trend that of the conventional practice where the solutions in the preferential agreements and above all of the commercial disputes that are created “come out” of the EU material law and enter in the field of investments in international law.