Mundell-Fleming Model - 經濟

By Joseph
at 2010-06-19T18:48
at 2010-06-19T18:48
Table of Contents
想要問一個很簡單的小問題
出自 mankiw的macroeconomics Ch.12
他有一個部分對r做了一點變化
r = r* + θ ; θ指的是risk
Y= C(Y-T) + I(r*+θ) + G + NX(e) -> IS*
M/P = L(r*+θ,Y) ->LM*
而我看不懂的是當risk上升之後的影響
θ上升 -> r上升 投資下降 IS*左移 =>這邊OK
接著LM*會右移 因為高利率降低貨幣需求 Y需要增加以恢復貨幣市場均衡
(for any given money supply)
所以名目匯率會下降
這邊我就看不懂了ˊˋ
為什麼貨幣需求降低會影響LM*右移? 為什麼不是左移以取得平衡?
有沒有人可以為我解說一下當中的邏輯 感謝你 > <
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