Index ; Economics is a study of mankind in the ordinary business of life. The first reason yo study economics is that it will help you understand the world in which you live. There are many questions about the economy that might spark you curiosity. The second reason to study economics is that it will make you a more astute participant in the economy. As you go about your life, you make many economic decisions. 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.