Economics 2009 Jamb Examination
Economics 2009 Jamb Examination
Question 41
The short-run supply curve for medical doctors is more likely to be
In the short run, the number of qualified doctors cannot easily change, so the supply is perfectly inelastic.
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Question 42
If the price of an item changes by 8% and quantity supplied changes from 600 units to 660 units, the price elasticity of supply is
Elasticity of supply = % change in quantity supplied ÷ % change in price.
% change in quantity = (660 - 600)/600 × 100 = 10%.
Elasticity = 10% ÷ 8% = 1.25.
% change in quantity = (660 - 600)/600 × 100 = 10%.
Elasticity = 10% ÷ 8% = 1.25.
Not clear enough?
Question 43
A decrease in supply without a corresponding change in demand will lead to
When supply falls while demand remains constant, equilibrium price rises and equilibrium quantity falls.
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Question 44
A typical feature of a market economy is that
In a market economy, consumers determine what is produced through their purchasing choices, showing consumer sovereignty.
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Question 45
A cumulative frequency graph is
A cumulative frequency graph is called an ogive.
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Question 46
The privatization exercise in Nigeria is a move towards a
Privatization shifts ownership from government to private individuals, aligning with a market economy.
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Question 47
A movement along the same demand curve is caused by the
A movement along the demand curve results from a change in the price of the product itself.
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Question 48
The demand curve for a luxury good is
Luxury goods often show a positively sloped demand curve (Veblen effect) as higher prices may increase demand due to status value.
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Question 49
Musa has a choice of buying a shirt, a book and a bag. What is the opportunity cost of buying a book?
Opportunity cost is the next best alternative forgone. Choosing a book means giving up both the shirt and the bag.

