无聊教ECON，本人很烂纯粹无聊，误导不负责。

信基督因为林2 · 发表于 2012-3-11 05:42:00

Lecture 2

The Budget Constraint formula: (p1 * X1)+( P2 * X2) ≤ M
Notes: p1,p2 is the prices of those two goods.
X1, X2 is two goods quantity
M is the maximum income who had
No saving for the future at the moment.
Then we can calucate the intercept of the Budget constraint line.
assume all income spent on X1, then X1=M/P1
assume all income spent on X2 then X2=M/p2
Furthemore, slope= -p1/p2

just see the graph wll more clever.

信基督因为林2 · 发表于 2012-3-11 05:47:00

The slope of Budget line we called Marginal Rate Of Transformation, acronymize it as MRT. MRT=-p1/p2
To be careful it is different from MRS. Which is the slope of IC. MRS=△X2/△X1。
However, when the intersect of both line we will use these two fourmula and then put it together.At that moment just remember it.

信基督因为林2 · 发表于 2012-3-11 05:54:00

Consumer maximisation.
Consumers will maximise utility given their budget constraint. on the graph below means they will try to reach the highest indfference curve their income will aloow them to.
really important formula, we often use it in later.
-MU1/MU2=-P1/p2 is the consumer maximisation (how to find out MU we wil talk later)

信基督因为林2 · 发表于 2012-3-11 06:10:00

1， Interior solution consumption of both goods.
2, Corner solution only one good consumed.
just remind interior is marryh, corner is single...

信基督因为林2 · 发表于 2012-3-11 06:24:00

Taxes and subsidies impact on how much money is available for the consumers to spend on goods
They impact on the budget constraint

look by yourself, I'm also not really understood. whatever..

信基督因为林2 · 发表于 2012-3-11 06:25:00

XY冬夜雪 · 发表于 2012-3-11 09:22:00

挽尊

dior_红颜 · 发表于 2012-3-11 10:45:00

COOL ~

信基督因为林2 · 发表于 2018-9-4 04:39:00

呵呵。Sorry。最近没心情就挺停更一下。等我开始读回书了就重更吧。玩电脑好久一直不读书的人。。。。而且这样很乱，也帮不到什么人。我下次把所有我现在学到的公式写出来，和ECON专业词语写出来，那么你们能够提前看看。慢慢自己无聊玩的帖子，慢慢更新。。。