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jay1180 · 2022年09月26日

能这么算么

  1. CFA I
  2. Economics Analysis

NO.PZ2016010802000089

问题如下：

From the beginning to the ending years of a decade, the annual value of final goods and services for country X increased from €100 billion to €300 billion. Over that time period, the GDP deflator increased from 111 to 200. Over the decade, real GDP for country X increased by approximately:

选项：

A.

50%.

B.

67%.

C.

200%.

解释：

B is correct.

Real GDP in the first year was €100 billion/1.11 = €90 and in the last year it was €300 billion/2.00 = €150. Thus, (€150 – €90)/€90 = 0.67 or 67%.

考点： GDP deflator

解析：运用 GDP deflator 反解除一年前后的真实GDP数值，

一年前：€100 billion/1.11 = €90

一年后：€300 billion/2.00 = €150

在进一步求得真实GDP的增长率，(€150 – €90)/€90 = 0.67 or 67%.

或者

NOMINA2/NOMINAL1=3/1

DEFLATOR2/DFLATOR1=(NOMINAL2/NOMINAL1)×(REAL1/REAL2)

200/113=REAL1/RELA2

REAL2=REAL1×1.665

所以，INCREASE=66.5%

(Real GDPt- Real GDP0)/ Real GDP0

= (Nominal GDPt/GDP Deflatort- Nominal GDP0/GDP Deflator0)/ (Nominal GDP0/GDP Deflator0)

=(300/200-100/111)/(100/111)=66.5%


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笛子_品职助教 · 2022年09月27日

嗨，努力学习的PZer你好：


能这么算么


Hello，亲爱的同学。可以这么算的。


根据上面红框里的公式，GDP deflator就是物价涨幅。


所以我们通过名义GDP/物价，就能得到实际GDP

一年前：€100 billion/1.11 = €90，这个数值就是实际GDP

一年后：€300 billion/2.00 = €150，这个数值就是实际GDP

对于真实GDP的增长率，(€150 – €90)/€90 = 0.67 or 67%.



----------------------------------------------
虽然现在很辛苦，但努力过的感觉真的很好，加油！

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