Question

求微观经济学关于垄断的这道题的答案

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Answer 1

When maximizing profits, a monopoly always operates on the elastic portion of its demand curve. The elastictivty is one at the quantity where marginal revenue equals zero, demand is elastic at quantities where marginal revenue is postive, and demand is inelastic at quantites where marginal revenue is negative. A monopoly maximizes profits when marginal revenue equals marginal cost. Because marginal cost is positive, marginal revenue has to be positive, meaning that demand is elastic.