PastPaper.question 1 · Short Answer
5 PastPaper.marks(a) Define the term 'income elasticity of demand' (YED). [2]
(b) Explain one way a business might use income elasticity of demand data when planning product development. [3]
(b) Explain one way a business might use income elasticity of demand data when planning product development. [3]
PastPaper.showAnswersPastPaper.hideAnswers
PastPaper.workedSolution
**(a) Define the term 'income elasticity of demand' (YED).**
Income elasticity of demand measures the numerical responsiveness of the quantity demanded of a product to a change in real consumer incomes. Formula:
\( \text{YED} = \frac{\\% \text{ change in quantity demanded}}{\\% \text{ change in income}} \)
**(b) Explain one way a business might use income elasticity of demand data when planning product development.**
If a business knows the YED of its product range, it can adjust its product development strategy to align with forecasted changes in national income. For example, if incomes are forecasted to rise, a business might develop new premium products (income elastic, normal/luxury goods) to capture increased consumer spending. Conversely, if a recession is predicted, they may focus development on basic or budget-friendly items (inferior goods with negative YED) because demand for these will rise as consumer incomes fall.
Income elasticity of demand measures the numerical responsiveness of the quantity demanded of a product to a change in real consumer incomes. Formula:
\( \text{YED} = \frac{\\% \text{ change in quantity demanded}}{\\% \text{ change in income}} \)
**(b) Explain one way a business might use income elasticity of demand data when planning product development.**
If a business knows the YED of its product range, it can adjust its product development strategy to align with forecasted changes in national income. For example, if incomes are forecasted to rise, a business might develop new premium products (income elastic, normal/luxury goods) to capture increased consumer spending. Conversely, if a recession is predicted, they may focus development on basic or budget-friendly items (inferior goods with negative YED) because demand for these will rise as consumer incomes fall.
PastPaper.markingScheme
**Part (a): [2 marks]**
- 2 marks: Clear definition showing understanding of the responsiveness of quantity demanded to a change in income (or correct formula with terms defined).
- 1 mark: Partial understanding (e.g., 'how demand changes when income changes').
**Part (b): [3 marks]**
- 3 marks: Clear explanation of how YED data is applied to product development (e.g., developing luxury goods during economic booms or inferior goods during recessions) with analytical links to business performance.
- 2 marks: Explanation of a use of YED data but with limited link to product development, or a general explanation with a weak analytical chain.
- 1 mark: Identification of a use of YED data or a relevant point about product development.
- 2 marks: Clear definition showing understanding of the responsiveness of quantity demanded to a change in income (or correct formula with terms defined).
- 1 mark: Partial understanding (e.g., 'how demand changes when income changes').
**Part (b): [3 marks]**
- 3 marks: Clear explanation of how YED data is applied to product development (e.g., developing luxury goods during economic booms or inferior goods during recessions) with analytical links to business performance.
- 2 marks: Explanation of a use of YED data but with limited link to product development, or a general explanation with a weak analytical chain.
- 1 mark: Identification of a use of YED data or a relevant point about product development.