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Firms, Consumers and Elasticities of Demand

  • 10 subtopics
  • 30 things to know
  • Papers 2 and 3

What Firms, Consumers and Elasticities of Demand covers

Firms, Consumers and Elasticities of Demand is examined in Paper 2, Competing in the global economy, and in Paper 3, The economic environment and business. It covers calculating and interpreting price elasticity of demand, factors influencing price elasticity of demand, price elasticity of demand and total revenue, price elasticity of demand in niche and mass markets, pricing strategies, choosing the right pricing strategy, online sales, price comparison and pricing decisions, non-price competition and the demand curve, devising a marketing approach and income elasticity of demand.

Where it is assessed

Papers 2 and 3

Competing in the global economy, then the synoptic paper on the pre-released context.

Check the Pearson Edexcel specification ↗

The 10 subtopics

Each one has its own page.

What you need to know

Answer each one before you reveal it.

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Key term

Why is total revenue at its maximum where demand is unit elastic?

Key term

Distinguish between a mark-up on cost and a profit margin on price.

Key term

What is the formula for price elasticity of demand?

Key term

What is the single most important factor determining the price elasticity of demand for a good?

Key term

Distinguish between a niche market and a mass market.

Key term

How does the number of unique selling points a product has affect the price a firm can charge?

Key term

How has the growth of online selling affected firms' freedom to set prices?

Key term

Define non-price competition.

Key term

What are the four elements of the marketing mix?

Key term

What is the formula for income elasticity of demand?

Key term

Why is the price elasticity of demand negative for almost every good?

Key term

Why does a good with many close substitutes have elastic demand?

Key term

What is the formula for total revenue?

Key term

Why is demand in a niche market usually less price elastic than in a mass market?

Key term

Define cost-plus pricing.

Key term

How does price elasticity of demand influence the choice of pricing strategy?

Key term

What is dynamic pricing?

Key term

Why do firms in an oligopoly rely more on non-price competition than on price competition?

Key term

Why must the elements of the marketing mix be consistent with one another?

Key term

Define a normal good in terms of income elasticity of demand.

Numbers

A firm raises its price from £2.00 to £2.20 and weekly sales fall from 500 to 450 units. Calculate the price elasticity of demand.

Key term

How does the passage of time affect the price elasticity of demand for a good?

Key term

What happens to total revenue when a firm facing inelastic demand raises its price?

Key term

Why might a firm deliberately move out of a mass market and into a niche?

Numbers

A product has a unit cost of £40 and the firm applies a mark-up of 25%. Calculate the selling price.

Key term

How does a strong brand widen a firm's pricing options?

Key term

In which two markets is dynamic pricing most common?

Key term

Define product differentiation.

Key term

Define market segmentation as a step in devising a marketing approach

Key term

Define an inferior good in terms of income elasticity of demand.

Take Firms, Consumers and Elasticities 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: the percentage change in quantity bought divided by the percentage change in the amount charged for the good itself. Income elasticity of demand: the percentage change in quantity bought divided by the percentage change in what consumers earn in real terms.

  • Inelastic demand vs Perfectly inelastic demand

    Inelastic demand: a response in which the quantity bought changes by proportionately less than the price that caused it. Perfectly inelastic demand: a response in which the quantity bought does not change at all when price changes, giving a value of 0 and a vertical curve.

  • Mark-up on cost vs Profit margin on price

    Mark-up on cost: the surplus on a sale expressed as a percentage of what the unit took to produce, so £2 on an £8 unit is 25%. Profit margin on price: the surplus on a sale expressed as a percentage of what the customer pays, so £2 on a £10 sale is 20%.

Questions from this topic

Each one with the model answer underneath.

  1. 1

    What is the formula for price elasticity of demand?

    Model answer

    Price elasticity of demand is the percentage change in quantity demanded divided by the percentage change in price.

  2. 2

    Why is the price elasticity of demand negative for almost every good?

    Model answer

    Price and quantity demanded move in opposite directions, so one of the two percentage changes is positive while the other is negative.

  3. 3

    A firm raises its price from £2.00 to £2.20 and weekly sales fall from 500 to 450 units. Calculate the price elasticity of demand.

    Model answer

    Price rises by 10% and quantity falls by 10%, so the price elasticity of demand is −1.0.

  4. 4

    Quantity demanded falls by 4% when price rises by 8%. Calculate the price elasticity of demand and state what it shows.

    Model answer

    The price elasticity of demand is −0.5, which shows that demand is price inelastic.

  5. 5

    A firm cuts its price by 5% and the quantity sold rises by 15%. Calculate the price elasticity of demand.

    Model answer

    The price elasticity of demand is −3.0.

  6. 6

    What does a price elasticity of demand of −0.3 tell a firm about the response to a price rise?

    Model answer

    Demand is highly inelastic, because a 1% rise in price reduces quantity demanded by only 0.3%.

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Firms, Consumers and Elasticities of Demand revision questions

What does Firms, Consumers and Elasticities of Demand cover in Edexcel A-Level Economics B?
10 subtopics: calculating and interpreting price elasticity of demand, factors influencing price elasticity of demand, price elasticity of demand and total revenue, price elasticity of demand in niche and mass markets, pricing strategies, choosing the right pricing strategy, online sales, price comparison and pricing decisions, non-price competition and the demand curve, devising a marketing approach and income elasticity of demand. Each one has its own page with questions and model answers.
How is Firms, Consumers and Elasticities of Demand organised?
By the Edexcel 9EB0 specification, subtopic by subtopic, so it matches the order you are taught it in.

Every question in Firms, Consumers and Elasticities of Demand, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

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