IB Economics HL: 15-mark Questions & the IA
"My evaluation answers just won't break the top bands, and Paper 3 and the IA feel like a black box." Here's a clear, experience-based walkthrough of IB Economics HL — from how the course is structured to how you actually pick up marks on exam day.
IB Diploma Economics is the art of reading real-world events through theory. At HL (Higher Level) you take everything from SL and add Paper 3 and a quantitative element, raising the depth expected of you. How is the course structured? How do you actually score the 15-mark evaluation questions? And what does the IA involve? Let's go through it. It should also help if you are still weighing HL against SL during subject selection.
What does Economics HL cover? Four units and nine key concepts
As a core social-science subject, Economics HL is also a common choice for students with an eye on university admissions in Japan. Economics is organised into four units:
- Introduction — scarcity, opportunity cost and the foundations of thinking like an economist.
- Microeconomics — demand and supply, prices, market failure and government intervention.
- Macroeconomics — GDP, inflation, unemployment, fiscal and monetary policy.
- The global economy — trade, exchange rates, economic development and international cooperation.
Running through all of it are nine key concepts (change, efficiency, equity, economic well-being, sustainability, scarcity, choice, interdependence and intervention). In essays and the IA, asking "which concept does this question engage?" gives your answer a clear thread.
Treat each unit not as a list of facts to memorise but as a toolbox for explaining the news, and applying it — in the IA and on exam day — becomes far easier.
The assessment at a glance (Papers 1–3 and the IA)
Economics HL is assessed through four broad pillars. (Exact weightings and timings vary by school and syllabus, so always confirm them in your subject guide.)
| Format | Tests | |
|---|---|---|
| Paper 1 | Extended-response essays | Arguing and evaluating with theory |
| Paper 2 | Data response | Interpreting provided source material |
| Paper 3 | HL only — policy/quantitative | Policy analysis and calculation (HL-only) |
| IA | Portfolio of commentaries | Linking news articles to theory |
The Internal Assessment (IA) is a portfolio in which you pick news articles and write short commentaries analysing them with economic theory. Reading the news regularly makes it much easier to find strong material.
How to score the 15-mark evaluation questions
The high-mark evaluation questions are where Economics HL is won or lost. Top-band answers share a common structure:
- Definitions — define your key terms accurately at the outset.
- Diagrams — draw the relevant diagram correctly, labelling axes, curves and the equilibrium.
- Real-world examples — tie in concrete countries, firms or policies.
- Genuine evaluation — weigh several perspectives: short run vs long run, who gains and who loses, the assumptions made, the limits of a policy.
Working with the HL quantitative element (calculations)
HL adds a quantitative element. Typical tasks include demand and supply calculations, elasticities, and the changes in surplus caused by intervention such as taxes and subsidies. Three things matter most:
- Mind your units and signs — students lose marks on the sign of an elasticity or the direction of a change.
- Show your working — even if the final figure is wrong, correct steps can earn partial credit.
- Connect the numbers to the diagram — being able to explain a result on a diagram pays off in the evaluation questions too.
Three habits that raise your score
In Economics HL, the difference comes less from how much you know and more from how precisely you apply theory to reality and evaluate it.
- Work backwards from the markscheme. Knowing which elements earn marks — definitions, diagrams, examples, evaluation — settles the structure of your answer, and deciding how much time Economics HL deserves within your overall score strategy keeps your effort efficient.
- Make explaining the news with theory a daily habit. It feeds both your IA hunting and your evaluation answers.
- Start your IA early. Searching for strong articles at the last minute is inefficient; planned well, the IA is a reliable source of marks.
When you feel you "can describe it but can't break into the evaluation bands," a single look at your answers from someone who's done the IB often reveals the missing perspective fast. Quick IB's tutors — all IB graduates — are happy to help with exactly that kind of answer-level review.