[課業] 財政學-從價稅
請問課從價稅後,為何需求曲線會變下圖中的D1,而不是D2?
http://i.imgur.com/EdxtlJw.jpg

另外下圖的文字,為何稅後需求曲線=P(1-t)而不是P(1+t)?
課稅完價格不是變高嗎...
http://i.imgur.com/5STjxbM.jpg

還有下圖供給曲線S1=S0(1-t)
為何不是=S0(1+t)?
http://i.imgur.com/e7Go8wL.jpg

感覺是一些基本觀念的問題,但就是搞不懂,古狗一下也查不太到,麻煩各位解惑,非常
感謝!
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