IB Economics HL 2.5.1 Concept of elasticity Question Bank
Practise IB Economics SL/HL 2.5.1 by applying concept of elasticity concepts to exam-style questions.
- Syllabus
- First assessment 2022
- Course
- Economics HL
- Level
- HL
Practise IB Economics SL/HL 2.5.1 by applying concept of elasticity concepts to exam-style questions.
Figure 1 illustrates the production possibilities for rice and pencils in Country H. Resources in Country H are fully employed.

Figure 1
Table 1 provides information about Good X and Good Y, which are related goods.

Table 1
Using Table 1, calculate the cross price elasticity of demand between Good X and Good Y when the price of Good X increases.
The demand for Good Z is income inelastic.
Using Table 1, calculate the cross price elasticity of demand between Good X and Good Y.
XED=%ΔP(X)%ΔQd(Y)=16.675
Any valid working (correct %ΔQd(Y) or %ΔP(X), provided the formula is not inverted) is sufficient for [1].
=0.3
An answer of 0.3 without any valid working is sufficient for [1].