Economics: A Theory of Prices Based on Supply and Demand

According to supply-and-demand economics, certain basic principles hold true: when supply goes up, prices go down, and when supply goes down, prices go up; when demand goes up, prices go up, and when demand goes down, prices fall. It is also generally understood that increasing the money supply causes inflation and shrinking the money supply lowers inflation. But why does this happen? How does this happen? Nobody truly understands this. This book is the missing piece of the puzzle of econom...