Many considerations are involved in examining the regularities regarding how changes in the tax burden affect national budget revenues, on the one hand, and how these changes influence economic activities, on the other hand. This book will explain how these affect employment and output rates. It is equally important to examine how government spending influences economic growth. The Keynesian model of aggregate demand gives a quite comprehensive picture of how the tax burden influences economic growth. Though this model has been the subject of many studies and is well explored, it can be said t.