2019年CFA考试《CFA一级》考试共240题，分为单选题。小编为您整理Economics5道练习题，附答案解析，供您备考练习。

1、In competitive markets, when the efficient quantity is produced, the least likely result is to:【单选题】

A.maximize total surplus.

B.generate underproduction.

C.minimize deadweight loss.

正确答案:B

答案解析:“Efficiency and Equity,” Michael ParkinWhen the efficient quantity is produced, total surplus (the sum of consumer surplus and producer surplus) is maximized. Deadweight loss reduces total surplus and occurs when there is either underproduction or overproduction, i.e. when the quantity produced differs from the efficient quantity. When the efficient quantity is produced, underproduction does not occur.

2、Which of the following statements concerning market structure and Herfindahl-Hirschman Index (HHI) is most accurate?【单选题】

A.HHI is a useful measure of potential barriers to entry.

B.Low control over prices is characteristic of oligopolies.

C.An HHI value of 60 indicates that a market is highly competitive.

正确答案:C

答案解析:“Organizing Production,” Michael ParkinHHI values below 100 indicate the market is highly competitive.

3、Under conditions of perfect competition, in the long run companies will most likely earn:【单选题】

A.positive accounting profit and negative economic profit.

B.zero accounting profit and positive economic profit.

C.normal profit and zero economic profit.

正确答案:C

答案解析:In highly competitive market situations, companies tend to earn the normal profit level over time because the ease of market entry allows for other competing companies to compete away any economic profit over the long run. When accounting profit equals normal profit, economic profit is zero.Sections 2.1.1–2.1.2

4、First-degree price discrimination is best described as pricing that allows producers to increase theireconomic profit while consumer surplus:【单选题】

A.increases.

B.decreases.

C.is eliminated.

正确答案:C

答案解析:In first-degree price discrimination, the entire consumer surplus is captured by the producer; theconsumer surplus falls to zero.Section 6.4

5、Which of the following international organizations' mandate is to makes resourcesavailable to member countries with balance of payments problem?【单选题】

A.World Bank.

B.World Trade Organization.

C.International Monetary Fund.

正确答案:C

答案解析:国际货币基金组织（IMF）在其会员国出现国际收支问题时，会提供必要的援助。