Economics is a social science concerned with the production, distribution, and consumption of goods and services. It studies how individuals, businesses, governments, and nations make choices about how to allocate resources. Macroeconomics and Microeconomics are the two main branches of...

Preface and Introduction -- Preface to the Second Edition -- I. The Basic Concepts of Linear Models -- 1.1. Economic Equation Systems -- 1.2. Some Conventions of Notation -- 1.3. The Basic Block-Equation -- 1.4. Some Types of Relations -- 1.5. The Nature of Stochastic Relations -- 1.6....