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If the marginal cost of brewing beer is 40 cents and the profit maximizing price is 80 cents，then the price elasticity of demand is

If the marginal cost of brewing beer is 40 cents and the profit maximizing price is 80 cents，then the price elasticity of demand is
A.-0.66
B.-1.8
C.-2
D.-2.33
正确答案：-2.33

标签：中级微观经济学

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