本题目来源于试卷: IB Economics Unit 2.3: Microeconomics - Elasticities，类别为 IB经济学
[单选题]
Consumer electronics dc f 8l(6py ti/ cdb1b1yat+t9ha ,hxbxr8cn) zmz; *jz l.gu3mr+ f(wx;ve price elastic supply because
I. They are durable and can be stored
II. They do not take a long time to produce
III. They have a lot of substitutes
IV. They are luxuries
A. I only
B. I and II only
C. II only
D. III and IV only
参考答案: B
本题详细解析:
Statement I: A more durable product will often lead to supply being more price-jb0 5 zq,ief+helastic as producers can store inventory when prices are too low. Consequently, an increase in price caqih j5fbez 0,+uses a proportionally larger increase in quantity supplied.
Statement II: Electronics are often assembled in factories and production can be increased in a relatively short period of time.
Statement III: Availability of substitutes is a determinant of PED, not PES.
Statement IV: The degree of luxury/necessity is a determinant of PED, not PES.
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