CAIE A-Level Economics 2.2.1 PED, YED & XED
Practise defining PED, YED and XED, then applying each measure to price, income and related-good changes in demand contexts.
- Syllabus
- 2026–2028
- Course
- Economics 9708
- Level
- AS
Exam points
- distinguish PED, YED and XED from the demand change and causal variable in a prompt
- use a demand diagram to explain how a substitute price rise affects another product
2.2.1—PED, YED and XED question 1
[Maximum number: 1]
What can be measured by cross-elasticity of demand?
A
a change in real income as a result of a change in the price of consumer goods
B
a change in the demand for a good in response to a change in the price of a complement
C
a change in the price of a good in response to a change in the demand for a substitute
D
a change in the price of a good when the demand for it changes
B
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