IB Economics SL Extended Essay Example

The student stated a clear research question and kept the investigation connected to inflation and public transport throughout most of the report.

The student used a relevant mix of national data, reports, a questionnaire, and diagrams to build their investigation.

The student's topic is appropriate for Economics and shows a clear attempt to investigate a real issue in Cameroon.

The scope is too broad for a fully systematic investigation, especially because the transport mode, location, and outcome are not tightly defined.

Key terms such as inflation, impact, and public transportation sector are not operationally defined.

The methodology needs more detail on the survey sample, sampling method, and limits of the sources used.

The student applies several relevant economic ideas, including inflation, subsidies, elasticity, surplus, and supply-side policy.

The student makes good use of contextual evidence from Cameroon rather than relying only on generic theory.

The student uses terminology that is mostly accurate and shows real subject knowledge.

Some concepts are applied imprecisely, especially where revenue, profit, and surplus are treated as if they mean the same thing.

A few claims go beyond what the evidence clearly supports, particularly when linking service quality or other outcomes directly to inflation.

The source base is relevant overall, but some sources are not as strong or authoritative as they could be for this topic.