This document provides an overview of economic systems and the market system. It discusses key aspects of different economic systems including laissez-faire capitalism, command systems, and market systems. The market system is described as having private ownership, competition, specialization, and an active but limited government role. The circular flow model is introduced as illustrating the flows between households and businesses through product and resource markets. Risk is addressed as being borne mainly by business owners to attract inputs and focus decision making.