引用:
原帖由 khkenny2 於 15-6-2010 20:56 發表
核廢料都曾經有用過...垃圾都曾經係有用既物品
用呢兩樣黎形容益左佢
佢係free goods,no oc,no demand and nobody wants anymore of it
你唔識ECON就唔好9 UP
Longman exploring Economics 1
A free good is a good whose available quantity is sufficient to satisfy all human wants for it.
It is something we do not prefer to have more of. No one is willing to pay a price for a free good. This is because its
quantity is sufficient that all our wants for it have been satisfied.
如果我係FREE GOOD 好似 O2 (oxygen), 都唔錯, 至少唔係冇用, 又有可能CHANGE TO economy good
唔似你D bad GUM
Bad is anything we do not desire, it is something we prefer less to more。
你先係垃圾