IB Economics Unit 2.6: Microeconomics - Market Power (id: 9ea3451c3)

本题目来源于试卷: IB Economics Unit 2.6: Microeconomics - Market Power，类别为 IB经济学

[单选题]

Which level of output is allocatively efficient?

A.
B.
C.
D.


参考答案:  C


本题详细解析:

C

$\underset{‾}{\text{Key idea}}$:
Allocative efficiency occurs when the total benefit to demanders and suppliers is maximised. On a diagram this is seen at the quantity where:

• demand = supply
• price = marginal cost
• demand = marginal cost

$\underset{‾}{\text{Explanation}}$:
The level of output at point C corresponds with a price that is equal to marginal cost. When P = MC, economic welfare is maximised, and there is no deadweight loss. At this point, demand is equal to supply.

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