Using the data in Extract A, calculate, to 2 decimal places, the income elasticity of demand for takeaway meals - Edexcel - A-Level Business - Question 1 - 2018 - Paper 1
Question 1
Using the data in Extract A, calculate, to 2 decimal places, the income elasticity of demand for takeaway meals. You are advised to show your working.
Extract A
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Worked Solution & Example Answer:Using the data in Extract A, calculate, to 2 decimal places, the income elasticity of demand for takeaway meals - Edexcel - A-Level Business - Question 1 - 2018 - Paper 1
Step 1
Calculate the Percentage Change in Quantity Demanded
96%
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Answer
To find the percentage change in the average number of takeaway meals consumed:
For 2013: 140 meals
For 2014: 144 meals
Using the formula:
Percentage Change=Old(New−Old)×100
We have:
Percentage Change=140(144−140)×100=1404×100=2.86%
Step 2
Calculate the Percentage Change in Income
99%
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Answer
Now, for the median income:
For 2013: £27,000
For 2014: £27,195
Using the formula:
Percentage Change in Income=Old(New−Old)×100
We calculate:
Percentage Change in Income=27000(27195−27000)×100=27000195×100=0.72%
Step 3
Calculate Income Elasticity of Demand
96%
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Answer
Using the values obtained for the percentage changes:
Percentage Change in Quantity Demanded = 2.86%
Percentage Change in Income = 0.72%
Using the formula for Income Elasticity of Demand:
Income Elasticity of Demand=Percentage Change in IncomePercentage Change in Quantity Demanded
Thus, we have:
Income Elasticity of Demand=0.722.86=3.97