10. Which of the following statem ments are true?
(A) The firm's profit is concave in the vector λ
(B) The firm's profit is convex in the vector λ
(C)The firm's profit is both concave and convex in the vector λ
(D)The firm's profit is neither concave nor convex in the vector λ
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統計: A(0), B(1), C(0), D(0), E(0) #3009198
統計: A(0), B(1), C(0), D(0), E(0) #3009198