###### tags: `個經` `110-1`
# 個經CH01 - Analyzing Economic Problems

## Three key Analytial tools
### Constrained optimization
> Do more with less

Find the objective function

---
$happy = 2*play time - studytime$
$2*play - study$ -> **Objective function**
subject to : $playtime + studytime \le 24hours$ -> **Constraint**

---

### Equilibrium: Analysis
Equilibrium: The state or condition that will continue indefinitely as long as exogenous factors remain unchanged.

供給和需求拉扯下得到的結果

### Comparative statics
> How a change in exogenous variable will affect endogenous.

因為薪資或外在因素使需求、供給整條移動

## Positive and Normative Analysis
### Positive Analysis - 客觀的分析
Explain a fact:
What has happened? What is happening?

### Normative Analysis - 主觀的分析
Judge a fact:
What should be done?
> Usually contain: should, needs better...

[CH02](/70AU7pEXTjq_9N7zY6CtHw)