作者查詢 / ChrisOvO
作者 ChrisOvO 在 PTT [ Economics ] 看板的留言(推文), 共16則
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2F推:slutsky中的X其實是dI/dPx12/05 01:55
1F推:看你要分析什麼呀12/05 01:58
5F推:兩者沒有互相隱含的關係12/05 02:02
2F推:需求或供給彈性的構成中包含斜率,但不能說斜率就是彈性11/12 01:16
3F→:而線上的每ㄧ點都有自己的彈性值11/12 01:19
9F噓:……11/11 00:16
23F推:推!11/11 00:23
7F推:第二題是25%還28%?07/09 11:17
3F推:dlnQ=dQ/Q,也就是代表"變動量"07/06 22:43
4F→:若將題目的式子全微分,會得到:dln(Q)=-0.1dln(P)+0.3dln07/06 22:45
5F→:dln(Q)=-0.1dln(P)+0.3dln(I)07/06 22:46
6F→:再根據題意:P變動了0.2,I變動了0.107/06 22:47
7F→:代入上式得dln(Q)=-0.1*0.2+0.3*0.107/06 22:48
8F→:dln(Q)=0.01>0,代表Q的變動為正07/06 22:49
9F→:也就是Q會上升07/06 22:50
10F→:只要記得dlnX代表X的變動量07/06 22:51
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