AL ECON

Resources are limited relative to human wants. it is a kind of mean or tool for u to achieve the ultimate goal and it itself have no meaning or use.
The scare resources are the production factors, time and money.
But money exits because of exchange, so, it's not a scare resource in one man economy.
Examples: 咁你一個人向個island 上面, 你咪得自己一個人的human resource 去produce 你的食物, 如果你去種左米的話, 你咪唔可以種potato lor. under this situation, 你的constraints 咪係你冇time去種, 冇human resource去種, 什至唔夠land 去種.

我諗時間係其中一種