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甜甜 · 2022年11月14日

it is the retail value of the good less the value of raw materials produced in the prior period (16.50 – 3.50 = 13.00).

NO.PZ2022071403000057

问题如下:

Question

The costs associated with the production and sale of a good are indicated in the following table:

The contribution (in £/unit) that this good makes to current GDP is closest to:

选项:

A.13.00. B.16.50. C.24.67.

解释:

Solution

A is correct. GDP is defined as the market value of all final goods and services produced within the economy in a given period of time. In this case, it is the retail value of the good less the value of raw materials produced in the prior period (16.50 – 3.50 = 13.00).


As indicated in the preceding table, GDP can also be determined either (1) by the difference between the sum of the selling prices at each stage of the process in the current period less the total costs of the inputs at each stage of the process arising in the current period (41.17 – 28.17 = 13.00) or (2) by summing the value added at each stage of the process in the current period (1.92 + 2.60 + 3.21 + 5.27 = 13.00).

B is incorrect: £16.50 is the selling price of the final good. Since the input materials were produced in the prior period, their cost needs to be deducted from the selling price (16.50 – 3.50 = 13.00) to determine the current contribution to GDP.

C is incorrect: £24.67 is the sum of all the input costs incurred in the current period (28.17 – 3.50 = 24.67).

为什么要减去3.5?value of raw materials为什么不算作这个good的value?

1 个答案

笛子_品职助教 · 2022年11月14日

嗨,努力学习的PZer你好:


为什么要减去3.5?value of raw materials为什么不算作这个good的value?

Hello,亲爱的同学!

是要减去3.5的。因为我们GDP是定义,某个期限内,产品的价值。

而3.5不是本期的,是上一期的。

同学看红框里的prior period,就是因为这个词语的存在,所以我们要把上一期的减掉。



A is correct. GDP is defined as the market value of all final goods and services produced within the economy in a given period of time. In this case, it is the retail value of the good less the value of raw materials produced in the prior period (16.50 – 3.50 = 13.00).


同学注意这里和书本例题不一样哦,书本例题里的数字都是本期的。


这是一个小陷阱,我们见过了就不会上当了。

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虽然现在很辛苦,但努力过的感觉真的很好,加油!

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