ce econ mc about national income

1. A

The increase in re-exports willl cause the GDP to increase.

However, with the increase in imports, the private consumption expenditure,

government expenditure and firm expenditure will increase in equal amount,

since that they are inter-related.

Therefore, the increase in imports does not change the GDP.



2. C

With the same explanation in question 1, under the expenditure approach,

the expenditure ( C+ I + G ) increases in the same amount with the increase

in imports since imports is the component that should not be counted in GDP.


這裡我用中文吧：

Import是不應計在GDP裡的，因為貨品不是來自常駐生產單位

(Resident producing unit)。那你不計的那樣東西無論是多或少你都是不計的，

是吧？我來打個比方，如果你在計家庭收入時，劉德華的收入理當應不計入你的

家庭收入吧，而當劉德華今年賺多了錢時，也不影響你的家庭收入喔。

所以，當import增加時，是源於C + I + G中的外國進口貨品收入增加了，

所以要減的 I 數要增加相同的份量才能把IMPORT的數不計進GDP。

我想問下第2題係幾多年既pp?

1) d
First of all, net export is part of the GDP calculation(contrary to what the first guy said, GDP = C + I + G + (X - I), it does include import.) Since we do not know the magnitude of increase in export or import, we do not know how does it affects GDP, for example if export goes up by 200, Import goes up by 100, then GDP goes up by 100. on the other hand, if import goes up by 200 whereas export goes up by 100, the GDP goes down by 100.
2) b
this time export remains unchange and import goes up, therefore, GDP goes down.
I