IS-LM-BP - 經濟

※ 引述《betray911015 (回頭太難)》之銘言：
: Use your understanding of the IS-LM-BP model to answer this question.
: Assume at the initial equilibrium that output is above the target level
: of output and that a private payment surplus exists. Given this
: information, we know with certainty that which of the following policy
: actions will simultaneously achieve both internal and external balance?
: a) increase in the nominal money supply
: b) reduction in the nominal money supply
: c) increase in government expenditures
: d) reduction in government expenditures
: e) more information is needed to answer this question
: 題目說一開始的均衡產出在目標的水準之上，接下來的意思我就不懂了
: 題目是要問什麼??
答案是 d) reduction in government expenditures
這題是說目前的產出超出自然水準
而原因是a private payment surplus exists
姑且不論是因為overinvetment or overconsumption所造成
這都表示是過度的民間支出推升了IS
Y=G+(I+C)+Net EX
降低政府支出G即可拉回IS並恢復自然平衡

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