The student effectively uses subject-specific terminology relevant to the chosen article and key concept, including terms like "interdependence," "comparative advantage," "producer surplus," and "allocative efficiency." This terminology is consistently incorporated throughout the work, enhancing the analysis of the EU-Mercosur trade agreement and its implications for national interests. The student demonstrates a solid understanding of the economic concepts involved, particularly in discussing the balance between interdependence and national security. Additionally, the use of diagrams further supports the application of these economic terms in context.