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Elasticity of Demand

  • 3 subtopics
  • 9 things to know
  • Unit AS 2

What Elasticity of Demand covers

Elasticity of demand is examined in Unit AS 2, Growing the Business. It covers price and income elasticity defined, and the effect on revenue, calculating and interpreting price elasticity, and what determines it and income elasticity, cross elasticity, and the limits of elasticity values.

Where it is assessed

Unit AS 2

Growing the Business, written examination, 20% of A level.

Check the CCEA specification ↗

The 3 subtopics

Each one has its own page. CCEA AS Business students sit this topic in the first year.

What you need to know

Answer each one before you reveal it.

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Key term

What do price elasticity values above one, of exactly one and of zero each mean?

Key term

How is income elasticity found, and what do +2.5, minus 0.8 and a value between zero and one each tell a business?

Key term

What do price elasticity and income elasticity of demand each measure, and what does the second one tell a business?

Key term

Define price elasticity of demand.

Numbers

State the formula for price elasticity of demand.

Numbers

State the formula for income elasticity of demand.

Key term

Define income elasticity of demand.

Key term

Why is the value of price elasticity of demand normally negative?

Numbers

Consumer incomes rise by 4% and demand for a product rises by 10%. Calculate the income elasticity of demand and classify the product.

Take Elasticity of Demand further

The same content, four other ways.

Commonly confused

Pairs that lose marks when they are blurred together.

  • Price elasticity of demand vs Income elasticity of demand

    Price elasticity of demand: how far quantity responds to a change in the good’s own price. Income elasticity of demand: how far quantity responds to a change in consumer incomes.

Questions from this topic

Each one with the model answer underneath.

  1. 1

    Define price elasticity of demand.

    Model answer

    A measure of the responsiveness of quantity demanded to a change in price.

  2. 2

    What does price elasticity of demand indicate about consumer behaviour?

    Model answer

    It shows how sensitive consumers are to price changes when deciding how much of a product to buy.

  3. 3

    Define income elasticity of demand.

    Model answer

    A measure of the responsiveness of quantity demanded to a change in consumer income.

  4. 4

    What does income elasticity of demand tell a business?

    Model answer

    How demand for its product will change as consumer incomes rise or fall.

  5. 5

    Explain why a price decrease leads to higher total revenue when demand is price elastic.

    Model answer

    Because the percentage increase in quantity demanded exceeds the percentage decrease in price, so overall revenue rises.

  6. 6

    If demand for a product is price elastic, what pricing decision would increase total revenue?

    Model answer

    Decreasing the price.

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AMarket growth = ((1950 − 1450) ÷ 1450) × 100 = 34.5 %.
BSales volume is the total quantity of units sold in a market.
CSales value is the total revenue generated from sales in a market.

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A salary is a fixed annual amount.
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Elasticity of Demand revision questions

Is Elasticity of Demand examined at AS in CCEA Business?
Yes. It sits in Unit AS 2, which you take in the first year, so it is on the AS paper as well as counting towards the full A level.
What does Elasticity of Demand cover in CCEA AS-Level Business?
3 subtopics: price and income elasticity defined, and the effect on revenue, calculating and interpreting price elasticity, and what determines it and income elasticity, cross elasticity, and the limits of elasticity values. Each one has its own page with questions and model answers.
How is Elasticity of Demand organised?
By the CCEA 3210 specification, subtopic by subtopic, so it matches the order you are taught it in.

Every question in Elasticity of Demand, on a schedule.

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