The student effectively uses subject-specific terminology that is relevant to the chosen article and key concept, demonstrating a strong grasp of economic concepts. Terms such as "contractionary monetary policy," "expansionary monetary policy," "aggregate demand," and "deflationary gap" are accurately incorporated throughout the commentary. Additionally, the student discusses the trade-off between inflation and unemployment, further showcasing their understanding of macroeconomic principles relevant to the topic. Overall, the incorporation of subject-specific terminology is consistent and evident throughout the entire work.