The student correctly uses subject-specific terminology that is relevant to the chosen article and key concept, including terms like "expansionary fiscal policy," "aggregate demand," "opportunity cost," and "inflationary pressures." This terminology is incorporated effectively throughout the entire work, demonstrating a strong understanding of economic concepts. The student's discussion of how the tax cut impacts disposable income and purchasing power further illustrates their grasp of the relationship between these factors and economic well-being. Overall, the consistent application of relevant economic terminology enhances the clarity and depth of the analysis.