Abstract
Abstract: Economics, as a practical discipline, is also a tool and method to analyze a certain reality. With the rapid development of our society, economics is more and more closely related to people's lives. As our study of economics, therefore, the life around some kind of economic phenomenon can be explained by the knowledge of economics, this is an example of the application of economics to life, is typical of the apply theory to practice, can make people understand life phenomenon of irrational thinking, and will produce the comprehend by analogy.