Principles of Economics经典读后感有感

《Principles of Economics》是一本由N. Gregory Mankiw著作，South-Western College Pub出版的Hardcover图书，本书定价：USD 142.95，页数：848，特精心收集的读后感，希望对大家能有帮助。

《Principles of Economics》读后感(一)：mankiw太懒了

考ECONOMICS是开卷，一直对这门课跟教这门课的老师没什么好感，所以也没舍得花钱买书，距考试还有一周的时候去图书馆借书，发现2008年的那个版本已经被借完了，只有其它版本也就是这本书，2003年版。借了书跟同学的2008版一对照，发现除了包装跟字的大小不一样，每一章开始的图片有所改动，其它完全一样。对了，还有举例的时候人物名字不一样。这老头也实在是太懒了吧，这么多年就靠着一门书坑蒙拐骗啊。最恶心的是我们用的课本跟这个名字还不一样，叫ECONOMICS，作者除了Mankiw还有另外一个不知名的人士。

《Principles of Economics》读后感(二)：万物互联

本人工科背景。首次接触曼昆是在大一的时候，当时上了一门叫经济学基础的通识课。草草学过一遍，算是对经济学有了个入门。五年后，这次回头看英文原版经典（第七版），有了很多新的体会：

五年前拿走的知识（Take home principles）：

“机会成本”的概念，我大学里面做的很多决策都是有考虑机会成本的，只此一条，便价值千金。

“自由市场”的概念深入我心。爱自由，无拘束。追求效率。看不惯一些行政机构僵化的体制；对企业，尤其是民营企业，产生了浓厚的兴趣。

今天的新体会：

对“供求关系”有了更深刻的体会。产能过剩，供给侧改革，房价的供、需两头限制的政策等国家大方向上的政策，都可以用供求关系来解释。

"替代品"和“互补品”的概念。A股里很多炒作的原理就是这两个东西。替代品，板块间的轮动；互补品，龙头切换，上下游行情蔓延。还有炒作“稀缺性”的概念，跟“弹性”有关。

曼昆关于“贸易保护主义”的几个观点，其核心观点依然是全球化贸易利大于弊：

1.失业不是问题，可以换新行业就业；

2.关系到国家命脉的行业 可以 适当 贸易保护；

3.新兴工业无需贸易保护也能成长；

4.政府补贴式的倾销不算啥坏事，虽然生产商受损，但国内消费者受益，其负担由倾销国财政来支出。

书里的几个例子很有意思。

（未完待续,更新在回复里）

《Principles of Economics》读后感(三)：Thinking Like an Economist

I believe that in some people’s minds, Economic must be a complicated and difficult subject which beyond our understanding and only the intelligent ones could handle it. However, in my opinion, it is only because we are utterly ignorant about the subject of economic, once we know something about it with books or courses,we may acquire the idea that there is no mystery to what an economy is. According to the dictionary, the word economy comes from the Greek word oikonomos, which means “one who manages a household.” So it is clearly that households and economies have much in common, which something we could see or we just take part in every day. In our daily life, we must decide who to work, who cooks dinner or which TV show to watch. Like a household, a society also faces many decisions. Economics is the study of how society manages its limited resources. More specifically, economics studies how people make decisions and how they interact with one another.

“If all economists were laid end to end, they would not reach a conclusion.” This quip comes from George Bernard Shaw. As we all know, because of differences in scientific judgments and differences in values, some disagreement among economists is unavoidable and the study of economics has various theories which differ from school to school, but it could be unified by several central ideas. In this book Principles of Economics, we could find Ten Principles of Economics:

Principle 1: People face trade-offs.

Principle 2: The cost of something is what you give up to get it.

Principle 3: Rational people think at the margin.

Principle 4: People respond to incentives.

Principle 5: Trade can make everyone better off.

Principle 6: Markets are usually a good way to organize economic activity

Principle 7: Governments can sometimes improve market outcomes.

Principle 8: A country’s standard of living depends on its ability to produce goods and services.

Principle 9: Prices rise when the government prints too much money.

Principle 10: Society faces a short-run trade-off between inflation and unemployment.

Just do not worry if you don’t understand them all at first or if you are not completely convinced. The book will explore these ideas more elaborately in later chapters.

As for the author Nicholas Gregory Mankiw, he is an American macroeconomist and professor of economics at Harvard University, even was chairman of the Council of Economic Advisers under President George W. Bush. The book Principles of Economic which is divided into two parts -- microeconomics and macroeconomics is the most popular economics teaching material in western universities. It is quite easy on the whole. The writer did not use the complicated mathematical model but more interesting cases, easy-understanding words and related exercises. What impressed me most in it is the idea of opportunity cost. Because people face trade-offs, making decisions requires comparing the costs and benefits of alternative courses of action. In most time, however, the cost of an action is not as obvious as it first appears. And “the opportunity cost of an item is what you give up to get that item.” When making decisions, decision makers should be aware of of the opportunity cost of any possible actions so as to make the most beneficial choice.

So why should we, as the student at the beginning of the 21st century, embark on the study of economics？ There are three reasons. The first reason to study economics is that it will help you understand the world in which you live. A course in economics could spark your curiosity and help you answer those “why” questions. The second reason to study economics is that it will make you a more astute participant in the economy. The economy idea will give you a new perspective on how to make the decisions such as how much your money to spend, how much to save and how to invest the savings. The third reason to study economics is that it will give you a better understanding of both the potential and the limits of economic policy such as taxation. If you know how government make the policy, some seemingly unreasonable policies are of great benefits. For example, the higher taxes on imported car in China to some extent protects the domestic enterprises and protects millions of autoworkers from losing their jobs.

As for me, the value of this book is that it provides me with a new and useful way of thinking about the world in which we live. Every filed of study has its own way of thinking, and the approach for economists is to devise theories, collect data, and then analyze these data in an attempt to verify or refute these theories. Just like psychology helps us understand ourselves, economic helps us understand the outside world.

At the end, “studying economics will not by itself make you rich, but it will give you some tools that may help in that endeavor.” The principles of economics can be applied in many of life’s situations, like reading the newspaper, going shopping, sitting in the office or running a business, and you will be glad that you studied economics.