scarcity vs shortage

你先要知道既就係幾樣好簡單但重要既野

1.無論點樣都好,scarcity係必然會存在

2.有shortage時,暗示左必定有scarcity

3.但有scarcity唔代表有shortage

' the existence of market prices imples scarcity'你知點解啦,幾時都有嫁啦

只有free good先唔會出現scarcity,有price必然唔係free good

你個P=0,supply大過demand同'market prices imples shortage'好矛盾

P=0,Qs依然仲係大過Qd,呢一個正正就係free good,有點會有price呢

仲有,有price都唔代表有shortage,只要個price係訂喺equilibrium或以上

咁就冇shortage既出現,同埋shortage呢一樣野好假,你可以思考下點解

shortage is implied by existence of price,點解唔岩,上面就答左你啦

最後competition最基本既條件係要世界上有最少兩條友

如果世上只有一條友的話,就冇competition啦

但基本上你都可以話scarcity implies competition

但就唔係necessarily

希望幫到你啦
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