在西方通常会把第一、二部分划分为微观经济学，第三部分为宏观经济学。
一、人们如何做出决策
How People Make Decisions
- 人们面临得失交换（权衡取舍）
People facetradeoffs. - 某物的成本是为此所放弃的东西（机会成本）
The cost of something is what you give up to get it . - 理性人思考边际量
Rational people think at themargin. - 人们对激励作出反应
People respond toincentives.
二、人们如何相互作用
How People Interact
- 贸易能使人人收益
Trade can make everyone better off. - 市场通常是组织经济活动的好方式
Markets are usually a good way to organize economic activity. - 政府有时可以改进市场结果
Governments can sometimes improve market outcomes.
三、整体经济如何运行
How the Economy as a Whole Works
- 一国的生活水平取决于它的生产
The standard of living depends on a country's production. - 当政府发行了过多的货币时，物价上涨（通货膨胀）
Prices rise when the government prints too much money. - 社会面临通货膨胀和失业之间的短期得失交换
Society faces a short-run tradeoff between inflation and unemployment.
