问题如下:
When government spending increases, which curve would shift?
选项:
A.LM curve
B.IS curve
C.AS curve
解释:
B is correct.
IS curve can be described as: S=I+(G-T)+(X-M). When government spending increases, Savings go up so that the equation will hold. This will make GDP increases , so IS will shift to the right.
考点:IS曲线
解析:根据S=I+(G-T)+(X-M),可知X-M以及政府支出G,税收T都是外生变量,它们的变动会造成IS的平移
当G增加时,Y会增加,这表现为IS曲线向右平移。
LM曲线的平移只与价格水平以及名义货币供给有关,所以A选项不入选。
as为什么不影响?