This book is based on updated curriculum of BBA endorsed by Tribhuvan University and Pokhara University and the book has been designed to provide comprehensive knowledge for bachelor level students with basic understanding of macroeconomic theory. The scope of the book has been enlarged by covering overall content of the curriculum and many lucid examples with algebraic treatment and graphical illustrations have been included. An important feature of this book is that it has kept in view of the case study with application mostly in the context of Nepalese economy.