Suppose that the demand function is q = q (p) and that go = q (po)....

 

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Suppose that the demand function is q = q (p) and that go = q (po). Let MR(q) be the marginal revenue. Which of the following must be TRUE? I. If MR(q) = Po, then the demand is unit elastic at p = po. II. If 0< MR(qo) < Po, then the demand is inelastic at p = Po. III. If MR(90) > Po, then the demand is elastic at p = Po. A. I only C. All of the statements B. I and II only D. None of the statements Suppose that the demand function is q = q (p) and that go = q (po). Let MR(q) be the marginal revenue. Which of the following must be TRUE? I. If MR(q) = Po, then the demand is unit elastic at p = po. II. If 0< MR(qo) < Po, then the demand is inelastic at p = Po. III. If MR(90) > Po, then the demand is elastic at p = Po. A. I only C. All of the statements B. I and II only D. None of the statements

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