IB Economics Unit 2.5: Microeconomics - Market Failure (id: 5e9cf7612)

本题目来源于试卷: IB Economics Unit 2.5: Microeconomics - Market Failure，类别为 IB经济学

[单选题]

Using the diagram above, determine the equilibrium price, the socially optimum output, and the size of the negative externality.

	Equilibrium price	Socially optimum output	Size of negative externality
A.	$4	350 000 kg	$0.5
B.	$3.5	300 000 kg	$0.5
C.	$3.5	300 000 kg	$1
D.	$4	300 000 kg	$1

A.
B.
C.
D.


参考答案:  C


本题详细解析:
C

The intersection of MPB and MPC determines the equilibrium price ($\text{\$}$3.50).

The intersection of MSB and MSC determines the socially optimum output (300 000 $kg$). The size of the externality is determined by the vertical distance between MSC and MPC, therefore it is $\text{\$}$1.

	Market price	Socially optimum output	Size of externality
$$A.$$	incorrect	incorrect	incorrect
$$B.$$			incorrect
$$D.$$	incorrect

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