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kevinzhu · 2019年11月09日

问一道题:NO.PZ2016010801000053

问题如下:

All else equal, which of the following was not a factor to increase the government deficit?

选项:

A.

an increase in the excess of private saving over private investment.

B.

an increase in net export.

C.

a increase in trade deficit

解释:

B is correct.

The fiscal balance equation is given as: (G-T)=(S-I)-(X-M), An increase in government deficit (G-T) is a combination of increase in private saving over private investing (S-I) and a decrease of trade deficit or net export (X-M).

考点:Relationship between Income Approch and Expenditure Approach

解析:

财政平衡方程为:(G-T)=(S-I)-(X-M),政府赤字(G-T)的增加的同时,私人储蓄增加超过私人投资(S-I),或者贸易赤字或净出口(X-M)减少,所以AC选项不入选,B选项入选。

X-M<0,then trade deficit.trade deficit increases,thenX-M的数值变小(for example,-1变成-2,then-(X-M)从+1变为+2),then G-T变大

这样理解对不对?

2 个答案

源_品职助教 · 2020年01月01日

净出口X-M增加,那么等式想要不变,G-T应该减少。

净出口增加的同时贸易赤字是减少的,贸易盈余是增加的。

G-T减少,等式右边也要减少,所以-(X-M)增加,X-M减少而不是增加。

源_品职助教 · 2019年11月11日

可以这样理解的。G-T变大就代表财政赤字变小,所以不入选。

kevinzhu · 2019年12月31日

净出口(X-M)增加,(G-T)减少 贸易赤字(X-M)增加,e.g.从-10变成-20,(G-T)增加

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