Q: Which formula correctly represents producer surplus?

$$\text{Producer Surplus} = \text{Payments} - \text{Cost}$$

Question 1

Suppose the market price for a concert ticket is \$$80. Alice is willing to pay up to \120$$, Bob up to \$$100, and Carol up to \70. $$What is the total consumer surplus in this market if each person buys one ticket at the market price?

Accepted Answer

$$\60$

Question 2

Which of the following best describes 'consumer surplus' in microeconomics?

Accepted Answer

The area under the demand curve and above the market price, up to the quantity purchased.

Question 3

A legal drug is sold in a market where some consumers are addicted and willing to pay a very high price, while others are not. If the government imposes a price ceiling below the equilibrium price, what is the most likely effect on consumer surplus?

Accepted Answer

Consumer surplus will increase for inframarginal consumers but may decrease for those unable to buy at the lower price.

Question 4

If the market price of a good increases, what happens to the producer surplus, assuming all else equal?

Accepted Answer

Producer surplus increases because the area above the supply curve and below the price expands.

Question 5

Which formula correctly represents producer surplus?

Accepted Answer

$$	ext{Producer Surplus} = 	ext{Payments} - 	ext{Cost}$$

Question 6

A seller is willing to sell a good for \$$50, but the market price is \80. $$What is the seller's producer surplus?

Accepted Answer

$$\30$

Question 7

If the area under the demand curve up to quantity $$Q is$$ $$A$$, and the total expenditure is $$P 	imes Q$$, what is the formula for consumer surplus?

Accepted Answer

$$A - (P 	imes Q)$$

Question 8

Which of the following statements about reservation price is correct?

Accepted Answer

It is the maximum price a consumer is willing to pay or the minimum price a seller is willing to accept.

Question 9

Suppose a new tax increases the cost of producing a good. What is the most likely effect on producer surplus?

Accepted Answer

Producer surplus decreases because the area between the price and the supply curve shrinks.

Question 10

If a new buyer enters the market and is willing to pay a price above the current market price, what is the effect on total consumer surplus?

Accepted Answer

Total consumer surplus increases because the new buyer adds surplus.

Question 11

Which of the following best describes the difference between inframarginal and marginal consumers?

Accepted Answer

Marginal consumers are those who are just willing to pay the market price, while inframarginal consumers are willing to pay more than the market price.

Question 12

A market for a new technology opens, and the price is set at \$$200. The cost for the first seller is \100$$, the second seller is \$$150, and the third seller is \250. $$How much total producer surplus is generated if only two units are sold?

Accepted Answer

$$\150$

Question 13

Which of the following is NOT a correct interpretation of the area under the supply curve up to a given quantity?

Accepted Answer

It represents the total value producers receive from selling that quantity.

Question 14

If the market price falls below the cost for all sellers, what happens in the market?

Accepted Answer

No sellers will supply the good, and quantity supplied drops to zero.

Question 15

A government subsidy increases the price received by sellers. What is the likely effect on producer surplus?

Accepted Answer

Producer surplus increases because the area between the price and the supply curve expands.

Question 16

Which of the following best explains why addicted consumers may pay a higher price for legal drugs than non-addicted consumers?

Accepted Answer

Addicted consumers have a higher willingness to pay, increasing their consumer surplus at higher prices.

Question 17

If the market price is set above the reservation price of all buyers, what is the outcome in the market?

Accepted Answer

No buyers will purchase the good, and quantity demanded drops to zero.

Question 18

Suppose the area under the demand curve up to $$Q is$$ $$A$$, and the area under the supply curve up to $$Q is$$ $$B. If $$the market price is $$P$$, what is the formula for total surplus in the market?

Accepted Answer

$$A - B$$

Question 19

Which of the following is a correct statement about the effect of a price increase on existing sellers in the market?

Accepted Answer

Existing sellers experience an increase in producer surplus because they receive a higher price for the same quantity.

Question 20

A new seller enters the market with a cost below the current market price. What is the effect on total producer surplus?

Accepted Answer

Total producer surplus increases because the new seller adds surplus.

Consumer and Producer Surplus in Microeconomics

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