IB Economics SL & HL Topic 5 — Exam Skills and Assessment Paper 2 Essay skill ~9 min read

Structuring the Paper 2 Extended Response

Part (g) is worth 15 marks — more than a third of the whole question. It looks like a Paper 1 essay, and that resemblance is a trap. Here the stimulus is not background reading; it is the evidence your argument has to be built from.

📚 What you need to know

What separates the bands

Three students can write about the same policy and land in three different bands. The difference is rarely how much economics they know. It is whether the theory and the data are doing the work together.

Why two of these three answers get capped same topic, same length, very different marks Theory only Data only Theory and data correct economics quotes the numbers theory explains the no figures used no theory behind it numbers in the text marks capped marks capped top band The data is not proof that you read the text. It is the evidence for your argument. If a figure could be deleted without weakening a sentence, it was decoration.
Generic theory is the most common reason a well-written part (g) stalls in the middle bands.

The shape of a strong part (g)

You are not writing four separate sections. Each paragraph should do the same four things in miniature, then move on to the next idea.

What every paragraph should do four moves, then start the next paragraph 1. Point 2. Theory 3. Evidence 4. Judgement say what the explain the chain quote a figure or say how much effect will be of cause and effect line from the text weight it carries Three or four paragraphs like this, then a short conclusion. Evaluation appears in every paragraph, not only at the end.
Step 3 is the one that separates Paper 2 from Paper 1. Never let a paragraph finish without touching the stimulus.

🧩 The overall plan

  1. Introduction — define the key terms and name the economic issue in this context.
  2. Analytical paragraphs — theory, explicit reference to the data, clear cause and effect.
  3. Evaluation — short run against long run, who gains and who loses, and the limits of the data itself.
  4. Conclusion — a reasoned judgement tied directly to the evidence you used.
You are allowed to question the data. A small sample, a short time period, figures given in nominal rather than real terms — noticing a limitation of the evidence is high-level evaluation, and most students never do it.

Worked examples

WORKED EXAMPLE

Turning a generic sentence into a Paper 2 sentence

The stimulus says that after Country A placed a tariff on imported cars, imported car sales fell by 18% and the average price of a car rose by 9%.

The generic version “A tariff raises the price of imports, so consumers buy fewer of them and domestic producers benefit.” Why it stalls Every word is true, and none of it comes from the text. This is a Paper 1 sentence. The Paper 2 version “The tariff raised the price of imported cars, and the text shows average car prices rose by 9%. Higher prices reduced quantity demanded, which is consistent with the 18% fall in imported car sales, shifting demand towards domestic producers.” Same theory, twice the credit The theory did not change. The evidence attached to it did.
WORKED EXAMPLE

Planning a 15-mark part (g)

Using the text/data provided, evaluate the effects of the tariff on imported cars in Country A. [15]

Introduction Define tariff; name the issue: protecting domestic car producers in Country A. Paragraph 1 — domestic producers gain Theory: import price rises, demand switches to domestic output. Data: the 18% fall in imported sales. Judgement: the gain depends on whether domestic firms can expand. Paragraph 2 — consumers lose Theory: higher prices, less choice. Data: the 9% price rise. Judgement: this hits lower-income buyers hardest. Paragraph 3 — government and the wider economy Tariff revenue against the risk of retaliation and higher costs for firms that use imported parts. Evaluate the evidence itself The data covers only one year, so long-run effects on efficiency are not visible. Conclusion Short-run gains for domestic producers, clear costs for consumers; whether it is worth it depends on how long the protection lasts. Every paragraph touches the data Write the plan in the margin in three minutes. It is the difference between an argument and a ramble.

💡 Exam tip

⚠ Common mix-up

Up next: Working Through Paper 3 Questions — the HL paper where your own calculations become the evidence for a single, clearly argued policy.

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