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]
Due to their non-excludjtsbij6bf 0f) z-qq28able and non-riv2zslnl1sc19qtk zk4 l84a ki2 u5rtu) alrous nature, public goods will not be provided by the free market. Therefo2 st 44su81lktk)qz9anilkc21 luz 5rre the government has to either directly provide those goods, or contract their provision out to the private sector.
Based on the statement above, which of the following is least likely to be true?
A. The non-excludable and non-rivalrous nature of public goods creates a free-rider problem.
B. Direct provision of public goods entails an opportunity cost.
C. Contracting out the provision of public goods to the private sector promotes transparency.
D. Public goods generate positive externalities.
参考答案: C
本题详细解析:
C In theory, contracting out should be transparent and fair, but in practice this is not always the case. Contracting out to the private sector can often create opportunities for corruption and lack of transparency. Choice A is true because the free-rider problem is the reason the private sector will not provide public goods. Choice B is correct because any government expenditures will always entail an opportunity cost and could be used elsewhere (like building schools or hospitals). Choice D is correct because public goods generate positive externalities of production and consumption, and they benefit both consumers and society as a whole.
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