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]
Identify which of the following is a determinanz2vj -pcy qy 4,jy62ktt of price elas 8/ryyvie9u)c ticity of supply (Py)8 e/ruviy9c ES).
A. Ability to store
B. Availability of substitutes
C. Proportion of income spent
D. Degree of necessity
参考答案: A
本题详细解析:
The ability to store a product affects its PES. Perishable products have lower Phuml l)21in dudmhh4m 4 e5:h1ES, and durable products have higher PES.
e1lh 1dlhnu:mh42 d5um)m h4 i
Choices B, C, and D are all determinants of price elasticity of demand (PED), not PES.
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