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Economics Paper 2, Nov/Dec. 2008  
Questions: 1 2 3 4 5 6 7 8 9 10 11 12 Main

General Comments
Weakness/Remedies
Strength




























Question 8
(a) Distinguish between a change in demand and a change in quantity demanded.

(b)     Give three reasons for changes in demand.



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observation

This was one of the most attractive and popular questions to a good number of candidates.  Good marks were scored by most candidates who had the real grasp of the demands of the question

However, a few weak candidates who attempted the question could not score good marks because they got themselves confused while differentiating between “change in demand” and “change in quantity demanded”.  Better still, the overall candidates’ performance in the question was above average.

The very good candidates presented their answers as follows:

(a)      A change in demand means that at the same price a different quantity or amount is demanded.  This is shown by a shift in the demand curve to the right when the change is an increase or to the left when the change is a decrease in demand as shown in the diagram below:

Whereas A change in quantity demanded occurs only when there is only a
change in price.  It occurs on the same demand curve.  This is shown below:

(b)     (i)      changes in the prices of other goods which are related;
(ii)      changes in tastes and fashion;
(iii)     changes in incomes;
(iv)     changes in the number of buyers;
(v)      changes in weather conditions;
(vi)     consumers’ expectations;
(vii)    availability of consumer credit;
(viii)   government policy e.g. taxation and subsidies;
(ix)     celebration of festivals.

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