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 determinant of price ela+v ilv6+ff1 jj57bsytsticity of su 9bha2vi5 bqj u4+;k1yla mzer,.5uthpply (PE j1qihhm4 5,t .uzbrb2ek;+ay v 9la5uS).
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 lowrhk,uudtum :90ig;e* er PES, and durable products have higher PES.
Choices B, C, and D are all dete 9: ,h*u irdugue;t0mkrminants of price elasticity of demand (PED), not PES.
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