Edexcel A-Level Business 9BS0
Meeting Customer Needs
Marketing Mix and Strategy
Managing People
Entrepreneurs and Leaders
Financial Planning
Managing Finance
Resource Management
External Influences
Business Objectives and Strategy
Decision-Making Techniques
Influences on Business Decisions
Assessing Competitiveness
Globalisation
Global Markets and Business Expansion
Global Marketing
Global Industries and Companies
The Market
Income elasticity of demand
- 4 things to know
- Paper 1 and Paper 3
Overview
What income elasticity measures, normal, inferior and luxury goods, and why income elastic products swing hardest with the economic cycle.
What you need to know
Answer each one before you reveal it.
What determines a product's income elasticity of demand?
What affects a product's income elasticity, and why does economic growth benefit businesses selling income elastic products?
What risk do businesses selling income elastic products face during economic downturns?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What does income elasticity of demand (YED) measure?
Model answer
The responsiveness of quantity demanded to a change in consumer income.
- 2
What do the two components of the YED formula represent?
Model answer
The numerator represents the percentage change in quantity demanded; the denominator represents the percentage change in income.
- 3
What type of good is indicated by a positive income elasticity of demand?
Model answer
A normal good, where demand increases as income rises.
- 4
If YED is negative, what does this indicate about the product?
Model answer
It is an inferior good, where demand falls as income rises.
- 5
At what value of YED does demand become income elastic?
Model answer
When YED is greater than 1, meaning demand is highly responsive to income changes.
- 6
What range of YED values indicates income inelastic demand?
Model answer
Between 0 and 1, meaning demand is relatively unresponsive to income changes.
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