IB Economics Unit 2.4: Microeconomics - Government Intervention (id: 5dc5a105d)

本题目来源于试卷: IB Economics Unit 2.4: Microeconomics - Government Intervention，类别为 IB经济学

[单选题]
Which of the following intervention g;czwrbt ;e(c0/mu.r s would be most appropriate in addressi 1ger1l )8 rc3z/zp;x 5*at cwtfpl3qfng the excess demand caused b8e/taplrcgq5zx1 )*3 cf 1 p3fzlrt;w y a maximum price?

A. A minimum price
B. A subsidy
C. A specific tax
D. A percentage tax


参考答案:  B


本题详细解析:

B

The imposition of the maximum price P${}_{Max}$ causes excess demand of Q${}_2-Q_1$. This excess demand is eliminated when the subsidy shifts the supply curve down.

Choice A is incorrect, as a minimum price could not be imposed if a maximum price is in effect. Further, effective minimum prices cause excess supply.

Choices C and D are incorrect as these indirect taxes would shift the supply curve to the left.

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