If the equilibrium quantity of a good is also the socially optimal quantity, then:
A. total economic surplus has been maximized.
B. the marginal cost to producers of another unit of the good is zero.
C. it's possible to make at least one person better off without hurting anyone else.
D. the marginal benefit to consumers of another unit of the good is zero.
Answer: A
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"Lower ticket prices would lead to more people attending ballgames." This statement is a
A) macroeconomic statement. B) statement assessing the social interest versus the private interest. C) normative statement. D) statement that confuses marginal cost and sunk cost. E) positive statement.
Suppose a perfectly competitive market is in long-run equilibrium with a price of $12. Then there is a permanent increase in demand
As a result, in the short run the market price ________ and in the long run the number of firms ________ and the price is ________ the price was in the short run. A) rises; does not change; is equal to B) rises; increases; higher than C) rises; does not change; lower than D) falls; decreases; is equal to E) rises; increases; lower than
Marginal benefit is the benefit
A) that your activity provides to someone else. B) of producing a good or service when the total benefit from the good or service exceeds its total cost. C) that is received from consuming one more unit of a good or service. D) of consuming another good or service divided by the total number of goods or services produced.
Suppose a perfectly competitive market is in a long-run equilibrium when a permanent decrease in the market demand occurs. In the long run, which of the following definitely occurs?
A) The price decreases. B) The number of firms decreases. C) The firms' marginal cost increases. D) Marginal revenue increases.