問題詳情
1 若 X 與 Y 為替代，而 Y 與 Z 為互補。其他條件不變，當 X 的供給減少時，Z 的價格會：
(A)上升
(B)下降
(C)不變
(D)不一定
(A)上升
(B)下降
(C)不變
(D)不一定
參考答案
答案：A
難度：適中0.63
統計：A(126),B(48),C(5),D(4),E(0)
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