Economics（经济学）Microeconomic Analysis 微观经济分析：相关习题2 price, demand, correct, candy, 经济学

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答案如下

If the price of a candy bar decreases from $0.55 to $0.50 and the demand increases from 235 to 267, the price elasticity of demand is:
A) -1.23
B) -1.34
C) 1.23
D) 1.34

Your answer: C was incorrect. The correct answer was B) -1.34.