2020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、Which of the following least likely affects how the burden of a tax is divided betweenbuyers and sellers?【单选题】

A.Elasticity of supply.

B.Elasticity of demand.

C.Whether the tax is imposed on buyers or on sellers.

正确答案:C

答案解析:不管税收是向谁征收的，都会在买卖双方问进行分配，关键看买方的需求价格弹性和卖方的供给价格弹性的相对大小。

2、An analyst does research about the income elasticity of demand.As income risesfrom $500 per week to $1 500 per week, the quantity demanded for a product increasesfrom 1 100 units to 1 500 units, the income elasticity of demand is closest to:【单选题】

A.0.25

B.0.31

C.0.40

正确答案:B

答案解析:[（1 500 - 1 100）/（1 500 + 1100）/2]/[（$1 500 - $500）/（$1 500 + $500）/2] =0.3077/1 = 0.3077。

3、【单选题】

A.E.

B.G.

C.F+H.

正确答案:C

答案解析:The loss in consumer surplus because of higher prices is represented by area e+f+g+h. This exceeds the gains from producer surplus (E) and government revenues on imports (G). Hence the net welfare effect to the country is a deadweight loss of[e+f+g+h] –[E] –[G] =
CFA Level 1
“Demand and Supply Analysis: Introduction,” Richard V. Eastin and Gary L. Arbogast, CFA Sections 3.9, 3.10, 3.13 “International Trade and Capital Flows,” Usha Nair-Reichert, PhD, and Daniel Robert Witschi, PhD, CFA
Section 3+.1

4、Benjamin Franklin, CFA, does research about consumer surplus and producersurplus.The deadweight loss from a perfectly competitive market is most likely:【单选题】

A.greater than the deadweight loss of a monopoly market.

B.less than the deadweight loss of a monopoly market.

C.equal to the deadweight loss of a monopoly market.

正确答案:B

答案解析:垄断市场会导致生产量减少，价格提高，造成过少生产，与完全竞争市场相比存在更多的无谓损失。

5、Assume that a monopoly is charging a price higher than the price that would exist in pure competition. If the monopoly decides to increase the price even more, the deadweight loss to society will most likely:【单选题】

A.increase.

B.decrease.

C.remain the same.

正确答案:A

答案解析:“Monopoly,” Michael Parkin
2011 Modular Level I, Vol. 2, pp. 199-201
Study Session 5-19-d
Explain how consumer and producer surpluses are redistributed in a monopoly, including the occurrence of deadweight loss and rent seeking.
As depicted in Figure 6 on page 200 of the readings, a higher monopoly price will increase the monopoly’s profit and also increase the deadweight loss.