Jamb Economics Past Questions For Year 1990

Question 1

The demand curve would shift to the left when there is a rise in

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  • A. Constant proportions
  • B. Constant complement
  • C. Income
  • D. The supply of the commodity
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Question 2

In the diagram above, RTX and STY are the marginal cost and the average cost curves responsively of a perfectly competitive firm. The supply curve of the firm is indicated by

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  • A. TX
  • B. RT
  • C. ST
  • D. TY
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Question 3

THE RELATIONSHIP BETWEEN TAX RATE AND INCOME WHICH IS RELEVANT TO A PROPORTIONAL TAX IS DEPICTED BY

jamb 1990

  • A. CURVES Z AND Y
  • B. CURVE X
  • C. CURVE Z
  • D. CURVE Y
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Question 4

The relationship between tax rate and income which is relevant to a progressive tax is shown by

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  • A. curve X
  • B. curveY
  • C. curve Z
  • D. curve X and Z
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Question 5

The lower half of the diagram indicates

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  • A. the flow of goods and services
  • B. payments for goods and services
  • C. the flow of income
  • D. government transactions
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