Economic Science is the science of Microeconomics and Macroeconomics, whose knowledge enables individuals and economic units or businesses, as well as States, to become holders of the methods and ways to understand the components of Economic Science. The components of Economic Science are primarily the demand and supply of goods by economic individuals and economic units, respectively. The production, consumption of economic goods, as well as their distribution, at the microeconomic level, takes place by economic units and economic individuals respectively, separately and distinctly, while the same processes, at the macroeconomic level, determine the total consumption, total production (National Product, Gross Domestic Product) and total distribution. Issues of price increases (inflation), labor force issues (full employment, unemployment, types of unemployment, underemployment), stagflation, and active demand in this book are discussed precisely and extensively, in a scientific, analytical, synthetic, and documented manner. The optimal allocation of productive resources, or factors of production, and the optimal allocation of economic goods are also subjects of the most important and significant Economic Science. The supply of goods (products and services) at affordable prices, in sufficient quantities, and which must be of very high quality is a very important issue, which we negotiate and document based on Economic Science. [...]