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salia · 2019年10月30日

问一道题: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%.

老师你好!

从第一年至第十年,一共10年的期间。

第一年的nominal GDP是100,最后一年的nominal GDP是300。

那111是哪一年的nominal GDP和real GDP的比例的?real GDP使用的基期是哪一年呢?

200是哪一年的nominal GDP和real GDP的比例的?real GDP使用的基期是哪一年呢?

这部分的课程内容一直很困惑,deflator本身已经是同样数量产品在不同时期价格的比较,可以看出整体价格的变化,inflation rate用deflator求比,表示的经济含义是什么呢?

1 个答案

源_品职助教 · 2019年10月31日

题目是这个意思,假设存在一个基准年份,和这个年份可以是第一年前的的第五年,第六年,第十年都可以,无所谓。反正这一年就是基年,第一年和第十年的比值都是和它比。

本题不是inflation rate用deflator求比 ,本题是比较REAL GDP增长,也就是提出了物价因素后GDP的增长,是一国经济产能真正的增长。

 

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