intermarket relationships
4 detailed 50-minute lessons with teaching scripts, worked examples, parent guides, and assessment criteria.
Lesson Overview
Total Lessons: 4
Tier: Foundation and Higher
Duration: 50 minutes per lesson (200 minutes total)
Exam Boards: AQA, Edexcel, OCR, Eduqas, CCEA
Tier: Foundation and Higher
Duration: 50 minutes per lesson (200 minutes total)
Exam Boards: AQA, Edexcel, OCR, Eduqas, CCEA
Learning Objectives
- Explain the key ideas of intermarket relationships
- Apply intermarket relationships to exam-style questions
- Develop independent study skills
- Build cross-topic connections
Prerequisites
- Read the revision notes for intermarket relationships first (GCSE Revise summary)
- Key vocab to pre-teach: Economics Exam Tips
- Basic skills: reading the summary notes and answering the practice questions there
Materials & Equipment
- Exercise book, coloured pens
- Ruler
- Printed revision notes (link below)
- Internet for videos (see Resources)
Lesson 1: Introduction: intermarket relationships
Duration: 50 minutes
Starter Activity (5 minutes)
Quick Recall
Write down everything you already know about intermarket relationships. Then check against the key terms: Economics Exam Tips. Use a mini-whiteboard or paper.
Main Content (35 minutes)
Parent/Teacher Guide:
Before lesson: Read the script below. Pre-teach key vocab: Economics Exam Tips.
If stuck: Re-read the revision notes (link above), then break the content into smaller steps.
Extension: See the Stretch & Challenge ideas in Lesson 4.
Before lesson: Read the script below. Pre-teach key vocab: Economics Exam Tips.
If stuck: Re-read the revision notes (link above), then break the content into smaller steps.
Extension: See the Stretch & Challenge ideas in Lesson 4.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: intermarket relationships. By the end you will be able to answer exam questions on it unaided. It connects to the rest of Economics because the ideas here recur across the spec."
Mins 5-20 - Direct Instruction: Work through the core ideas below one at a time; after each, ask your student to explain it back in their own words.
Mins 20-30 - Guided Practice: Model the worked example together, then let your student attempt the first practice question with guidance.
Mins 30-35 - Independent Practice: 2-3 practice questions from Lesson 3 below, with immediate feedback.
Mins 0-5 - Hook: "Today: intermarket relationships. By the end you will be able to answer exam questions on it unaided. It connects to the rest of Economics because the ideas here recur across the spec."
Mins 5-20 - Direct Instruction: Work through the core ideas below one at a time; after each, ask your student to explain it back in their own words.
Mins 20-30 - Guided Practice: Model the worked example together, then let your student attempt the first practice question with guidance.
Mins 30-35 - Independent Practice: 2-3 practice questions from Lesson 3 below, with immediate feedback.
First Look
Start with the revision notes summary, then attempt: Explain the difference between complementary and substitute goods, giving two examples of each.
Plenary (5 minutes)
Check Out
Your student states one thing they learned and one question they still have about intermarket relationships.
Lesson 2: Core Concepts: intermarket relationships
Duration: 50 minutes
Starter Activity (5 minutes)
Review Previous Lesson
Quick recap: write 3 key points from Lesson 1 on intermarket relationships. Check them against the notes below.
Main Content (35 minutes)
Key Fact: Complementary goods are used together (cars and petrol). A price rise for one reduces demand for the complement.
Key Fact: Substitute goods are alternatives (Coke and Pepsi). A price rise for one increases demand for the substitute.
Key Fact: Cross-price elasticity (XED) = %ΔQd of A / %ΔP of B. Positive XED = substitutes; negative XED = complements.
Key Fact: Derived demand: demand for one good comes from demand for another. Demand for labour is derived from demand for the product workers make.
Key Fact: Changes ripple through the economy: a rise in oil prices affects transport, manufacturing, food prices, and household budgets.
Economics Exam Tips: When analysing intermarket relationships, use the CSR framework: Complements or Substitutes? Sign of XED? Ripple effects? No market operates in isolation.
| Term | Meaning | Example |
|---|---|---|
| Definition | Goods that can replace each other | Goods consumed together |
| XED sign | Positive | Negative |
| Price of A rises, demand for B | Increases | Decreases |
| UK example 1 | Butter and margarine | Printers and ink cartridges |
| UK example 2 | Train and bus travel | Smartphones and phone insurance |
| Business implication | Compete for same customers | Bundle or discount together |
Practice (10 minutes)
Q: Explain the difference between complementary and substitute goods, giving two examples of each.
Answer: Complements: used together, price rise for one reduces demand for other (cars + petrol, smartphones + cases). Substitutes: alternatives, price rise for one increases demand for other (butter + margarine, train + bus).
Plenary (5 minutes)
Explain Back
Your student teaches the key points back to you without looking. Fill any gaps immediately.
Lesson 3: Application: intermarket relationships
Duration: 50 minutes
Starter Activity (5 minutes)
Quick Recall
Recall the key terms: Economics Exam Tips. Define each in one sentence.
Main Content (35 minutes)
Parent/Teacher Guide: Let your student attempt each question alone first, then compare with the model answer. Award method marks for correct working even if the final answer is wrong.
Q1: Explain the difference between complementary and substitute goods, giving two examples of each.
Answer: Complements: used together, price rise for one reduces demand for other (cars + petrol, smartphones + cases). Substitutes: alternatives, price rise for one increases demand for other (butter + margarine, train + bus).
Q2: Describe what is meant by derived demand and explain how it links product and factor markets.
Answer: Derived demand means demand for a factor comes from demand for the product. E.g. demand for software developers comes from demand for apps. If housing demand falls, demand for construction workers falls. This links product markets to factor markets.
Q3: Analyse how a significant rise in oil prices might affect other UK markets.
Answer: Oil is an input for many industries: transport costs rise, manufacturing costs increase, consumers spend more on petrol (reducing disposable income for other goods), demand for electric vehicles rises. A single market change propagates through interconnected markets.
Plenary (5 minutes)
Error Review
Review any questions answered incorrectly. Identify whether the error was knowledge, method, or reading the question.
Lesson 4: Exam Practice: intermarket relationships
Duration: 50 minutes
Starter Activity (5 minutes)
Command Words
Review what these command words require: state (one point), describe (say what happens), explain (say why), compare (both sides), evaluate (judgement).
Main Content (35 minutes)
Extended Answer
Extended question: Full-Mark Response Evaluate how the rise of streaming services has affected demand for cinema tickets and physical media. <div class="
A grade 9 response will: streaming is a close substitute for physical media (DVD/CD demand collapsed) but weaker substitute for cinema (different experience); cinema demand fell moderately (cinemas responded with premium experiences); conclude: close substitutes cause dramatic shifts, less similar substitutes cause more moderate shifts.
Exam Tips: Always specify whether goods are complements or substitutes before predicting effects. | XED sign: positive = substitutes, negative = complements. | Use derived demand to explain employment changes: fewer houses → fewer bricklayers.
Common Errors: Watch Out! Students often make mistakes here. Wrong: When the price of a good rises, demand for its substitute always increases by the same proportion. Correct: The extent of substitution depends on: how close the substitutes are, the time period (adjustment takes time), and consumer preferences (habit and brand loyalty reduce substitution). XED measures responsiveness but it varies — no automatic proportional relationship.
Stretch & Challenge (Grade 8-9):
- Synoptic links: explain how intermarket relationships connects to another Economics topic you have studied
- Real-world: research one real-world use or example of intermarket relationships
- Critical: "What are the limitations of the models used in intermarket relationships?"
Plenary (5 minutes)
Assessment Criteria
- Got it: Confident explanation + correct worked examples
- Getting there: Main points OK, needs support with detail
- Not yet: Confused on key concepts - re-run Lesson 2
Homework & Consolidation
- Consolidation: Re-answer any Lesson 3 practice questions answered incorrectly (20 mins)
- Retrieval: Write flashcards for the key terms: Economics Exam Tips (10 mins)
- Exam practice: One past-paper question on intermarket relationships from the board websites (15 mins)
- Extension: Explain intermarket relationships to someone else in your own words (10 mins)