economic

今天上課,領會了一些,之前有上過,所以這次上起來得心應手...

what kind of questions does economic add?
what are the principles of how people make decitions?
what are the principles of how people interact?
what are the principles of how the economy as a whole works?

每天,都會有適當的原則在我們的生活裡...

EX:how people decide how much to work,save,and spend,and what to buy....

最常見的比如我們常遇見的opportunity cost,the cost of sth is what you give up to get it.
凡做決定,所放棄的則為opportunity cost.

課堂上已經不會再教"看不見的手"是什麼了,每個老師的教學方式,當然不一樣嘍