2.1.1 The law of demand

Key concepts to master

• 2.1.1 The law of demand should be understood as a core IB Economics SL idea, not just a definition to memorize. Aim to explain what it means, where it appears in the syllabus, and why it matters in exam answers.
• High-scoring responses on 2.1.1 The law of demand usually connect the main concept to subject-specific terminology, clear cause-and-effect reasoning, and accurate examples taken from class content or past-paper style scenarios.
• Revision works best when you move between three layers: the core idea itself, the evidence or examples that support it, and the common exam wording used to assess it.

How to study this topic

1. 1

   Start with a one-sentence definition of 2.1.1 The law of demand in your own words, then expand it using the exact terminology expected in IB Economics SL.

2. 2

   Use the resources on this page to separate factual recall from application. First learn the idea, then practise using it in short structured responses.

3. 3

   Review 2.1.1 The law of demand alongside nearby topics in Economics SL so you can compare concepts, avoid mixing terminology, and understand how the topic is framed across the syllabus.

Common mistakes

• Giving a memorized definition of 2.1.1 The law of demand without showing how it works in context or why it matters in IB Economics SL.
• Confusing 2.1.1 The law of demand with closely related terms from the same unit, especially when the question asks you to compare, explain, or evaluate.
• Skipping examples, evidence, or exam command terms, which makes answers sound generic even when the core idea is correct.

Study prompts

• Explain the significance of 2.1.1 The law of demand in IB Economics SL.
• Compare 2.1.1 The law of demand with a related concept from the same Economics SL unit.
• Describe one example or scenario that shows how 2.1.1 The law of demand works in practice.
• Identify one common misunderstanding about 2.1.1 The law of demand and explain how to avoid it in an exam answer.