問題詳情
11. Suppose firms in a perfectly competitive industry are making economic profits. As a resultI. new firms enter the industry.II. the market price falls.III. the economic profits of the existing firms decrease.
(A) I and III
(B) I and II
(C) II and III
(D) I, II and III
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