IB Economics HL Internal Assessment Example

Relevant diagrams are included for all three commentaries, and the tariff diagrams are broadly accurate and clearly tied to the article.

Some diagrams are explained in a way that shows the intended economic mechanism, especially the price floor and tariff sections.

The diagram set shows clear effort to support the written analysis rather than acting as decoration.

The positive-production-externality diagram is conceptually incorrect because the private and social cost curves are reversed.

The subsidy/externality diagram is not fully accurate or clearly labelled, which weakens its credibility.

The second commentary’s diagram omits the key curves needed to show the macroeconomic effect, so the explanation is not fully supported by the visual evidence.

A wide range of relevant economic terminology is used across the commentaries.

Many terms are used appropriately in context, especially in the tariff discussion and in the basic price-floor explanation.

The writing shows clear familiarity with core vocabulary such as surplus, deadweight loss, tariff and comparative advantage.

Some key terms are used inaccurately, especially in the externality analysis where MSC is treated as if it means social benefit.

There is inconsistency in the macro policy language, particularly where monetary policy is described in contradictory ways.

Because precision is not sustained throughout, the terminology is not consistently accurate enough for the top band.