The economy of the industrialized countries in the 21st century has already moved to a new level of mass production and technology never seen before, thanks in part to globalization, advanced technologies, new organization management methods, and innovative supply chain. A relatively large number of mass-produced commodities (characterized as non-premium) and services in Western economies are somehow sold at discounts rather than regular prices at a much higher frequency that was never seen before. This phenomenon has completely changed how we look at the theory of the firm in microeconomics. This book is indented to introduce new ideas and theories by challenging the current modern micro-and-macro economic theories. In a globalized world, the economies of advanced countries have entered a new phase called "economy pricing," where most of the mass commodities are sold at a low price during certain periods of the year, called 'sales events'. In addition to low prices, most industrialized countries have had record low inflation, low-interest rates, low growth, and low unemployment rates. This book will contend how the "Economy Pricing System" is about to revolutionize how people look at a real economy's micro and macro effects.