[考試] 彈性
來源: 94政大風管
問題:
The demand for good X has estimated by Qx = 12-3Px+4Py.
Suppose that good X sells at $2 per unit and good Y sells for $1 per unit.
Calcuate theown price elasticity.
(A) -0.2 (B) -0.3 (c) -0.4 (D) -0.5 (E) -0.6
我的想法:
答案為E, 我試了很多算彈性的公式,但是都算不出來,
有會的版友可以幫忙一下嗎?
謝謝~~
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