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、Consider the following information regarding consumer price index (CPI) numbers for this year and last year.The inflation rate (in %) for the period is closest to:【单选题】

A.2.35.

B.2.38.

C.2.41.

正确答案:C

答案解析:"Monitoring Jobs and the Price Level” Michael ParkinThe inflation rate is calculated as: ((CPI this year – CPI last year) / CPI last year) × 100. In this question, the inflation rate is ((267.54 – 261.25) / 261.25) × 100 = 2.407656.

2、A college student’s monthly demand for pizza is given by the equation:The student’s current monthly food budget is $500, the price of a pizza is $5 and the price of cola is $1.25/bottle. If the student’s monthly food budget were to increase to $700, the slope of her demand curve for pizza would be closest to:【单选题】

A.–2.42.

B.–1.43.

C.–0.70.

正确答案:B

答案解析:“Demand and Supply Analysis: Introduction,” Richard V. Eastin and Gary L. Arbogast, CFA

3、An analyst does research about demand for labor.All else remaining the same, afirm's demand curve for labor will least likely shift in response to a changein the:【单选题】

A.wage rate of labor.

B.price of the firm's output.

C.marginal product of labor.

正确答案:A

答案解析:劳动力的需求曲线代表在不同工资水平下对于劳动力的需求量，由劳动力的边际收入产品（marginal revenue product）组成，而边际收入产品由边际产出（marginal product）和边际收益（marginal revenue）相乘得到，所以劳动力的需求受到企业最终产品价格和劳动力边际产出的共同影响，而工资率变化是在需求曲线上的移动，并不会引起需求曲线本身的移动。

4、The most important interest rate used in U.S.monetary policy is the federalfunds rate.All else being equal, the federal funds rate will least likely change ina response to a change in the:【单选题】

A.real long-term interest rate.

B.supply of real loanable funds.

C.amount of reserves in the banking system.

正确答案:A

答案解析:联邦基金利率是银行间进行相互短期资金借贷时所使用的利率，所以会受到真实可贷资金供给的影响，也会受到银行系统可贷资金余额的影响，但真实的长期利率与联邦基金利率的关联度最小。

5、An analyst does research about real GDP.Holding all else constant, a decrease inwhich of the following is most likely to result in an increase in the quantity of realGDP demanded?【单选题】

A.Import.

B.Export.

C.Government expenditure.

正确答案:A

答案解析:真实GDP的需求主要是由消费、投资、政府支出和净出口（出口减去进口）组成，如果进口增加的话，会减少净出口，并会减少真实GDP。