Based on Joshua Gans, Stephen King, Martin Byford, and Gregory Mankiw (2015), there are three reasons why students should study economics. The first is that economics can help people understand reality. For example, why some students are able to find a good job in a certain period but others are not able to find it as well in another period. Secondly, in people's daily lives, they always make economic decisions, for example, when you are a student you should devote time to study and your hobby; learning economics helps people become more astute in their decision-making processes. The last is that economics helps people gain a better understanding of the potential and limitations of government policy. For example, which type of tax is sensible and which is irrational