这题答案选对了，用公式和答案排除的，没看懂题干什么意思，能否解释一下
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No.PZ2016010802000095 (选择题)
来源: 原版书
Because of a sharp decline in real estate values, the household sector has increased the fraction of disposable income that it saves. If output and investment spending remain unchanged, which of the following is most likely?
您的回答, 正确答案是: C
A
A decrease in the government deficit.
B
A decrease in net exports and increased capital inflow.
C
正确An increase in net exports and increased capital outflow.
数据统计(全部)
做对次数: 3481
做错次数: 1778
正确率: 66.19%
数据统计(个人)
做对次数: 1
做错次数: 0
正确率: 100.00%
解析
C is correct.
The fundamental relationship among saving, investment, the fiscal balance, and the trade balance is S = I + (G – T) + (X – M). Given the levels of output and investment spending, an increase in saving (reduction in consumption) must be offset by either an increase in the fiscal deficit or an increase in net exports. Increasing the fiscal deficit is not one of the choices, so an increase in net exports and corresponding increase in net capital outflows (increased lending to foreigners and/or increased purchases of assets from foreigners) is the correct response.
考点：
解析： 一国GDP可以通过支出法表示 Y=C+I+G+X-M，也可以通过收入法表示 Y=C+S+T ，讲上述两者联立，可得：S=I+(G-T)+(X-M)
依据上式，净出口的增加可以导致储蓄S的增加，所以C选项入选B不入选。
财政赤字增加而非减少对应S的增加，所以A不入选。
