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Theory of Demand

Description: Theory of Demand and supply 2
Number of Questions: 20
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Tags: Theory of Demand and supply 2 Theory of Demand and Supply
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Which of the following is incorrect?

  1. The cross elasticity of demand for two substitute is positive.

  2. The income elasticity of demand is the percentage change in quantity demanded of a good due to a change in the price of a substitute.

  3. The cross elasticity of demand for two complements is negative.

  4. The price elasticity of demand is always negative, except for Giffen goods.


Correct Option: B

If goods X and Y are substitutes, then

  1. cross elasticity between X and Y is zero

  2. cross elasticity between X and Y is positive

  3. cross elasticity between X and Y is one

  4. cross elasticity between X and Y is negative


Correct Option: B

What is the new quantity demanded when price elasticity is 1 and price changes from Rs. 15 and Rs. 10 and the original quantity demanded was 10 units?

  1. 15 units

  2. 20 units

  3. 8 units

  4. 12 units


Correct Option: A

If consumers always spend 15% of their income on food, then the income elasticity of demand for food is

  1. 1.50

  2. 1.15

  3. 1.00

  4. 0.15


Correct Option: C

The price elasticity of demand for burger is

  1. the change in the quantity demanded for burger, when burger price increases by 30 paise per rupee

  2. the percentage increase in the quantity demand for burger, when the price of burger falls by 1% per rupee

  3. the increase in the demand for burger, when the price of burger falls by 10% per rupee

  4. the decrease in the quantity demanded for burger, when the price of burger falls by 1% per rupee


Correct Option: B

The maximum amount of goods - X the consumer can buy (by using the budget line) where M is his money income is given by

  1. M / Px

  2. M / Py

  3. Px / M

  4. Py / M


Correct Option: A

If the demand for a good is inelastic, an increase in its price will cause the total expenditure of the consumers of the good to

  1. remain the same

  2. increase

  3. decrease

  4. any of the these


Correct Option: B

The price of hot dogs increases by 22% and the quantity of hot dogs demanded falls by 25%. This indicates that demand for hot dogs is

  1. elastic

  2. inelastic

  3. unitarily elastic

  4. perfectly elastic


Correct Option: A

Utility may be defined as

  1. level of satisfaction

  2. want satisfying power

  3. both (1) & (2)

  4. none of these


Correct Option: C

If a buyer's willingness to pay for a new car is Rs. 200,000 and she is able to actually buy it for Rs. 180,000, her consumer surplus is

  1. Rs. 18,000

  2. Rs. 20,000

  3. Rs. 2,000

  4. Rs. 0


Correct Option: B

Utility may be defined as

  1. the power of a commodity to satisfy wants

  2. the usefulness of a commodity

  3. the desire for a commodity

  4. none of the above


Correct Option: A

Economic analysis expects the consumer to behave in a manner which is

  1. rational

  2. irrational

  3. emotional

  4. indifferent


Correct Option: A

For perfectly inelastic supply curve, elasticity value is

  1. one

  2. zero

  3. infinite

  4. none of these


Correct Option: B

Which of the following is a property of an indifference curve?

  1. It is convex to the origin

  2. The marginal rate of substitution is constant as you move along an indifference curve.

  3. Marginal utility is constant as you move along an indifference curve.

  4. Total utility is greatest where the 45 - degree line cuts the indifference curve.


Correct Option: A

The factors affecting elasticity of supply are

  1. nature of goods, technology

  2. time factor, future expectations

  3. both (1) & (2)

  4. neither (1) nor (2)


Correct Option: C

A horizontal supply curve parallel to the quantity axis implies that the elasticity of supply is

  1. zero

  2. infinity

  3. equal to one

  4. greater than zero but less than one


Correct Option: B

If a fisherman must sell all of his daily catch before it spoils for whatever price he is offered, once the fish are caught the fisherman's price elasticity of supply for fresh fish is

  1. zero

  2. infinite

  3. one

  4. unable to be determined from this information


Correct Option: A

Which of the following is not a determinant of supply?

  1. Price of the commodity

  2. Price of related commodities

  3. Elasticity of supply

  4. State of technology


Correct Option: C

Which of the following affects the elasticity of supply?

  1. Technique of production

  2. Time period

  3. Nature of the commodity

  4. All the above


Correct Option: D

Increase or decrease in supply means

  1. shift in supply curve

  2. movement along the same supply curve

  3. both (1) and (2)

  4. neither (1) nor (2)


Correct Option: A
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