問題詳情
21. As coffee becomes more expensive, Joe starts drinking tea instead of coffee. This is called:
(A) the income effect of a price change.
(B) a decrease in reservation price.
(C) the substitution effect of a price change.
(D) a decrease in demand.
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增