What is scarcity and why it is so important in economics?

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/12 02:34:43

What is scarcity and why it is so important in economics?
i need the definition and meaning about the scarcity and explain why is it so important.thanks!

什么是稀缺性,而且为什么它在经济活动中这么重要?
再问： i need the definition and meaning about the scarcity and explain why is it so important.thanks!!!
再答：稀缺性的概念在经济理论中起着至为重要的作用。有的经济学家认为这个概念是给经济学术语下个恰当定义时所必不可少的。最好的例子也许就是瓦尔拉Walras给社会财富即经济货物下的定义。他说“所谓社会财富我指的是所有稀缺的东西物质的或非物质的这里无论指何者都无关紧要也就是说它一方面对我们有用另一方面它可以供给我们使用的数量却是有限的”1926年第65页。 瓦尔拉解释说“有用”是指“能满足我们的某种需要”而“数量有限”则意味着有一些东西“存在的数量之多使我们每一个人都感到随手可取可以完全满足个人的需要”如空气、水等这些东西任何人都能随心所欲地获取称不上是社会财富。只有当它们稀有时才能被认为是社会财富的一部分（详情请见http://wenku.baidu.com/view/32c7892add36a32d73758181.html）

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