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IB Economics Unit 2.1: Microeconomics - Demand & Supply, Equilibrium (id: 3383ba

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admin 发表于 2024-4-8 17:01:00 | 显示全部楼层 |阅读模式
本题目来源于试卷: IB Economics Unit 2.1: Microeconomics - Demand & Supply, Equilibrium,类别为 IB经济学

[单选题]
Which of the following best describes the concept ofb7c6+ e5eh6 uk c:gyzzr) 0nmf “si*aar(4fayv6x1 e(3cva j bpme2x57z h gnalling” in the context of t7fecrxeb v651 x24 hva3jaay(* ampz( he price mechanism?

A. The process by which prices communicate information about the availability of resources
B. The outcome of increasing prices resulting in decreased quantity demanded
C. The practice of firms setting prices to maximise their profits in a competitive market
D. The government's role in controlling and manipulating prices to achieve desired outcomes


参考答案:  A


本题详细解析:
Signalling, in the context of the price mechanism, refers to how tz :y9jmsintjr: csz.0,33ue;rfqh+ prices communicate information about the availability of resources and how they should be allocated. The correct answer is Choice A. Prices act as signals, indicating resource scarcity when prices are high, or resource abundance when prices are low. These answer choices do not specifically address the concept of signalling in the context of the pricth9r:3 nsjmqeu ,cry 0 it.;jfz+s z3:e mechanism: Choice B refers to the law of demand. Choice C refers to the “incentive” function of price. Choice D is incorrect because the price mechanism refers to market forces—demand and supply—not government intervention.

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