引用:
原帖由 Accounting 於 2007-10-19 01:21 PM 發表 
中央銀行減息--->銀行不是會立即根隨減息嗎?
銀行問中央銀行借錢平左-----> 銀行錢多左----->它們可以借出市場的錢多左(Ms in market Increase)
減息同時令個貨幣存放既利率下降,熱錢離開,d 人轉走美金做第二d 貨幣..(Md in market Decrease)
Ms increase Md Decrease . 滙率Drop
首先,o係大部份既model之下,Ms係一個autonomous,無 r 呢一個variable o係佢條formular裡面既
而現實d講,money supply係一個government既monetary policy既一部分
所以,與其說係 r 下降令Ms上升,不如講係Ms上升令r下降
事實上係一個 Interest-Money Diagram Approach裡面,r 等同 money既price
所以如果用你果個situation (r 下降),只會得出Quantity supplied for money下降呢一個結論
而且只會係movement along the Ms curve, instead of a change in Ms (shift)
所以, r下降令Ms上升,呢個說法o係我既認知裡面未能夠成立
而你果個「Ms in market Increase」係成立既,但呢個其實係令個interest rate可以下降既原因,而唔係由r下降而衍生既
而如果解釋匯率下降既原因,可以用圖解
in a diagram of Demand-supply of domestic currency (in terms of foreigh currency),
Ms of domestic currency (USD) increases, lead to a downward shifting of the Ms curve
price of domestic currency decreases in terms of foreign currency
ie. domestic currency (USD) depreciates against foreign currency (eg. EUR,GBP)