NO.PZ2018062003000095
问题如下:
For some reason, household sector has increased the disposable savings. If output and investment are unchanged. The change will be:
选项:
A.Net exports unchanged.
B.imports increases.
C.imports decreases.
解释:
C is correct.
According to the equation : S=I+(G-T)+(X-M), when Saving increases, net imports will decrease.
考点:支出法和收入法
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 ,将上述两式联立,可得:S=I+(G-T)+(X-M)
依据上式,进口的减少可以导致储蓄S的增加,所以C选项入选B不入选。
净出口的增加(而非不变)可以带来S的增加,所以A不入选。
答案B, C说的是import 不是指公示里的M? X-M: export - import = net import?