[請益] 關於國際貿易的國際市場剩餘
請幫忙看這張高中課本的圖
http://ppt.cc/-21k
我的問題是:
在圖中荷蘭的國內市場來看,因為價格被國際市場決定,價格在P*,並且限定了數量QDH
,那麼國內的市場交易所創造出來的生產者剩餘與消費者剩餘應該就只有A+B+C下的梯形
QHD~QHS的交易量都是國際市場所交易的,那麼X+Z的面積應該就是國際貿易所創造出來的
福祉,其中國際貿易前後Z的福祉僅是來源不同(貿易前為國內,貿易後為國外)
X則是從總量來看增加的部分。
如果前面的描述沒錯,那麼在國際市場的供給需求線圖,生產者剩餘應該不是X(中間圖的
紅色面積),而應該是X+Z。
感謝指點迷津囉~~
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