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Marketing Management

Price and income elasticity of demand

  • 2 things to know
  • Papers 1, 2 and 3

Overview

Interpreting PED and YED values, what elastic and inelastic mean, and how each informs a pricing decision.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Numbers

What does price elasticity of demand measure, and what do elastic and inelastic mean?

Numbers

What does a positive income elasticity of demand indicate about a product?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What does price elasticity of demand measure?

    Model answer

    The responsiveness of quantity demanded to a change in price.

  2. 2

    What does it mean if demand is price elastic?

    Model answer

    Quantity demanded changes by a greater proportion than the change in price, with a PED value greater than one.

  3. 3

    What does it mean if demand is price inelastic?

    Model answer

    Quantity demanded changes by a smaller proportion than the change in price, with a PED value less than one.

  4. 4

    Explain why a price reduction increases total revenue when demand is price elastic.

    Model answer

    The gain in sales volume outweighs the lower price per unit, so total revenue rises.

  5. 5

    Explain why a price increase raises total revenue when demand is price inelastic.

    Model answer

    The fall in quantity demanded is proportionally smaller than the price rise, so total revenue increases.

  6. 6

    What does income elasticity of demand measure?

    Model answer

    The responsiveness of quantity demanded to a change in consumer income.

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