The student correctly uses subject-specific terminology relevant to the chosen article and key concept, incorporating terms such as "expansionary monetary stimulus," "interest rates," "quantitative easing," "aggregate demand and aggregate supply," and "contractionary policy." However, the incorporation of subject-specific terminology is not consistent throughout the entire work, as there are instances where the terminology is lacking, such as not explicitly stating that a policy is an expansionary monetary policy. Overall, while there is some effective use of terminology, there is a need for more consistent application throughout the commentary.