Commerce subjects share a world but not a method. Business (0450, and 0264 for the newer course), Accounting (0452) and Economics (0455) are separate Cambridge IGCSE syllabuses, and a good answer in one can look wrong in another.
How do they relate?
Think of a single shop.
Business asks how the owner should price, hire and advertise. Accounting asks how to record the sales and produce the financial statements. Economics asks how prices, demand and government policy shape the market the shop sits in.
| Subject | Main question | Core skill |
|---|---|---|
| Business | How should an organisation decide? | Applying concepts to a scenario, justifying a choice |
| Accounting | What do the figures show? | Accurate recording, layout and calculation |
| Economics | How do markets and policies behave? | Reasoning with cause and effect, graphs, evaluation |
The shared vocabulary, such as cost, revenue, profit and demand, is where students slip. “Profit” in an accounting statement has a specific meaning, while in business discussion it can be used loosely.
How do I choose between them?
School timetabling usually settles entry, so check the code first. If you do have a choice, read the syllabus overview for each subject on Cambridge and notice which description matches how you like to work: method and accuracy, scenarios and judgement, or models and reasoning. Some students take two of the three, and the overlap makes the second easier.
Which version applies to me?
Business has two codes, 0450 and 0264, depending on exam year. Confirm the code with your school and use the Cambridge subject page for that version. We keep one Business guide, with version-aware notes.
Where do I go next?
- Business guide, Accounting guide and Economics guide
- Business tuition, Accounting tuition and Economics tuition
Subject code before price comparison explains why confirming the code matters first.