QCE Economics: complete 2026 guide to Units 1 to 4 (General subject)
A complete 2026 guide to QCE General Economics Units 1 to 4. The four units (Markets and models, Modified markets, International economics, Contemporary macroeconomics), the three internal assessments and one external assessment, scaling and how marks combine into your subject result, and links to every dot-point answer we have written.
QCE General Economics Units 3 and 4 is the Year 12 sequence assessed across three internal assessments (IAs) and one External Assessment (EA). Unit 3 is International economics; Unit 4 is Contemporary macroeconomics. The EA tests Units 3 and 4 cumulatively at the end of the year.
This page is the index. Below you will find the structure of the course, what each instrument assesses, the Australian data you should know, and links to every dot-point answer we have written for QCE Economics across Units 1 to 4.
The four instruments in 2026
- IA1: Examination, combined response (Unit 3)
- A school-based 60 to 90 minute response on Unit 3 (International economics) content. Short response and stimulus-based extended response. 25 percent of the subject result. Typically sat in Term 1 or early Term 2 of Year 12.
- IA2: Investigation, project (Unit 3)
- A research investigation on a contemporary international economic issue, reported as a project of up to 1500 words. Tests analysis of secondary data, evaluation of policy options, and a justified recommendation. 25 percent of the subject result.
- IA3: Investigation, project (Unit 4)
- A research investigation on a contemporary macroeconomic issue (typically inflation, unemployment, growth or income distribution), reported as a project. Tests evaluation of macroeconomic policy. 25 percent of the subject result.
- EA: External Assessment, combined response
- A centrally-set 90 minute exam at the end of Unit 4, worth 60 marks. Multiple choice (10 marks), short response (30 marks) and a 20 mark stimulus-based extended response. Cumulative across Units 3 and 4. 25 percent of the subject result.
The four units
- Unit 1: Markets and models
- Scarcity, opportunity cost and the production possibility frontier. The market mechanism (demand, supply, elasticity, market equilibrium). Types of markets and the role of government. Not directly assessed for QCE but foundational for Unit 3.
- Unit 2: Modified markets
- Market failure (public goods, externalities, asymmetric information, market power). Government intervention (taxes, subsidies, regulation, price controls) and macroeconomic measurement (real GDP, CPI, unemployment rate). Not directly assessed for QCE but examined indirectly through Unit 4 macro tools.
- Unit 3: International economics
- Free trade theory and the gains from trade. Protection (tariffs, subsidies, quotas) and the case against. Australia's balance of payments and the current account. Exchange rates (floating, fixed, managed) and their determinants. Globalisation and free trade agreements. Both internal assessments (IA1 and IA2) draw on Unit 3.
- Unit 4: Contemporary macroeconomics
- Aggregate demand and aggregate supply. The objectives of macroeconomic policy (growth, full employment, low inflation, equity, environmental sustainability). Fiscal, monetary and supply-side policy. Income distribution and intergenerational equity. The IA3 investigation and roughly half the EA draw on Unit 4.
Our 2026 QCE Economics dot-point answers
Every link below is a focused answer to one QCAA subject-matter topic. Each page identifies the topic, gives the worked answer, cites past QCAA-style questions where available, and cross-links to related topics.
Unit 1: Markets and models
- Foundational topics for Year 11 students. Browse the full set at /qce/economics/syllabus/unit-1.
Unit 2: Modified markets
- Year 11 foundation. Browse the full set at /qce/economics/syllabus/unit-2.
Unit 3: International economics
- Browse the full set at /qce/economics/syllabus/unit-3.
Unit 4: Contemporary macroeconomics
- Browse the full set at /qce/economics/syllabus/unit-4.
The Australian data you must know in 2026
QCAA marking guides repeatedly reward responses that quote recent figures. Keep a one-page data card updated through Year 12:
- RBA cash rate (current target and trajectory over the past 12 months). Source: rba.gov.au.
- ABS CPI (headline year-on-year and trimmed mean). Source: abs.gov.au.
- ABS Labour Force (unemployment rate, participation rate, underemployment rate).
- ABS National Accounts (real GDP growth, year-on-year and quarter-on-quarter).
- AUD/USD and the trade-weighted index (RBA chart pack, monthly).
- Current account balance (ABS Balance of Payments, quarterly).
- Federal underlying budget balance (most recent Budget Paper No. 1 and forward estimates).
How Unit 3 and Unit 4 map to the instruments
- IA1 examination (25 percent)
- Topic-focused on Unit 3. Expect a balance of payments table, an exchange rate graph or a tariff diagram as stimulus, with short and extended response items requiring claim-evidence-reasoning under timed conditions.
- IA2 project (25 percent)
- A research investigation on a contemporary international economics issue (the strength of the AUD, the merits of an Australia-EU FTA, the impact of a global commodity price shift on the current account). Strong projects identify a researchable question, present clean secondary data, apply Unit 3 theory accurately, and reach a justified policy recommendation.
- IA3 project (25 percent)
- A research investigation on a contemporary domestic macroeconomic issue (inflation, unemployment, income distribution, the budget deficit). Strong projects evaluate competing policy levers (monetary vs fiscal vs supply-side) and reach a justified recommendation. The IA3 project format closely mirrors IA2 but draws on Unit 4 content.
- EA (25 percent)
- Cumulative across Units 3 and 4. The 20 mark extended response usually combines an international economics stimulus (Unit 3) with a macroeconomic policy response question (Unit 4).
How to use this hub
If you are starting Year 12 this term: read the Unit 3 dot points first. IA1 is sat in Term 1, so Unit 3 content takes priority.
If you are 2 weeks from IA1: focus on the balance of payments, exchange rates and free trade dot points. Drill stimulus interpretation under timed conditions.
If you are designing your IA2 or IA3 project: read the dot point most relevant to your chosen issue, then read our QCE internal vs external assessments explainer for what QCAA's project criteria reward.
If you are 6 weeks from the EA: revise the full Unit 3 and Unit 4 set above. Past EA papers (released by QCAA after each year) are the best practice resource.
Calculators and ATAR planning
Our QCE ATAR calculator lets you enter your projected Economics result alongside your other General subjects to estimate your ATAR. Economics is a mid-to-strong-scaling General subject in most years.
The system around QCE Economics
QCE Economics sits inside the wider QCE system. Related explainers:
For the official QCAA Economics general senior syllabus, IA syllabus specifications and past EA papers, refer to qcaa.qld.edu.au.
The QCE system, explained
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Common questions about Economics
- QCE General Economics is a four-unit Year 11 and 12 course assessed across Year 12 only for the QCE subject result. The Year 12 sequence (Units 3 and 4) is assessed through three internal assessments worth a combined 75 percent and one external assessment worth 25 percent. Unit 3 covers International economics, Unit 4 covers Contemporary macroeconomics. Year 11 (Units 1 and 2) is reported separately and is the assumed foundation for Year 12.
- The QCAA external assessment for Economics is a single combined response paper held in the Term 4 assessment block. It includes multiple choice, short response and a stimulus-based extended response across 60 marks over 90 minutes plus 15 minutes planning time. The EA contributes 25 percent of the subject result. It is cumulative across Units 3 and 4, so Unit 3 content remains examinable months after IA1.
- QCAA does not pre-scale subjects; QTAC scales the cohort distribution at the end of the year. Economics has historically been a mid-to-strong-scaling General subject, sitting between Business and Modern History on most years' ATAR scaling tables. Top-band students who take Economics alongside Mathematical Methods and one of Chemistry, Physics or English typically maximise scaling.
- No. UQ, QUT, Griffith and Bond do not require Economics for entry into commerce, business or economics degrees. However, doing QCE Economics gives a head start in first-year micro and macro, and high-scoring students often qualify for entry scholarships at UQ Business School. Check current QTAC prerequisite lists annually.
- Economics is the study of aggregate prices, output, employment, the exchange rate and government policy. Business is the study of how individual firms make decisions about marketing, operations, finance and people. Economics is more quantitative and theory-heavy, and pairs naturally with Mathematical Methods. Business is more applied and case-study driven. The two subjects overlap on macroeconomic context but use different analytical tools.
- IA1 is a 60 to 90 minute examination held in Unit 3 (International economics). It is internally set by your school under QCAA guidelines and includes short response and a stimulus-based extended response. The questions test analysis of unseen data (a balance of payments table, an exchange rate chart, a tariff diagram) under exam conditions. IA1 contributes 25 percent of the subject result and is usually sat in Term 1 or early Term 2 of Year 12.