what is scarcity?

In an economy, resources are limited. However, people's wants are infinite. So when the limited resources meet the infinite wants. This would cause scarcity.

Sacrcity is a state in which we do not have enough resources to satisfy ALL out wants.
Scarcity is a relative concept: a resource is scare only if its available quantity is not sufficient all our wants for it.
DO NOT THINK that a resources in little supply must be scare.

是稀少性。 (簡單D黎講=唔夠)

人類有無限的慾望與及有限的資源便會造成稀少性。(簡單D黎講 慾望 > 資源)
還有,At $ 0 ,Qd>Qs 零價格底下 .. 需求量大過供應量

稀少性涉及機會成本。

1. 蕭條(時期);缺乏,不足;匱乏

2. 稀少,罕見