A backward labor supply curve results from the fact that
(A)there is a positive substitution effect on the labor supplied.
(B)there are a large negative substitution effect and a positive income effect.
(C)there are a large negative substitution effect and a small positive income effect.
(D)a positive income effect is large enough to dominate a negative substitution effect.
答案是(D)
我的問題在於這邊的替代效果是只工資上升(或下降)對休閒時數還是對勞動時數的影響，
我是想說不是強調在勞動時數嗎？應該要分析工資上升對勞動時數的影響才對，這樣答案
我會選(A)，請各位高手解惑了！
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