The study of Economics is the study of the production, distribution and consumption of goods and services and the commercial activities of a society or a country as a whole.This book helps to develop skills for understanding how individuals, firms, a nation or a group of nations make economic choices. For this purpose, two approaches are adopted. The study of these two approaches are known as Micro Economics and Macro Economics.This book not only caters for the needs of the students studying for various professional examinations such as C.P.A. and C.P.S., but also will be useful to students who are preparing for careers in business, finance, governmental service, law and those who are required to study the fundamentals of economics for their respective courses in various universities. Students preparing for higher secondary school examinations will also find this book a useful aid to better understanding of the subject.