The price elasticity of demand equals 1:
The price elasticity of demand equals 1:
A.whenever the slope of a straight-line demand curve equals zero.
B.whenever the slope of a straight-line demand curve is less than 1 in absolute value.
C.at the midpoint of a straight-line demand curve.
D.whenever the slope of a straight-line demand curve is greater than 1 in absolute value.
正确答案：at the midpoint of a straight-line demand curve.
Tag：微观经济学 中国大学MOOC微观经济学
时间：2021-12-11 14:37:27
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