This two-volume text represents a common sense approach to basic microeconomics. Economics, far from being the dismal science, offers us valuable lessons that can be applied to our everyday experiences. At its heart, economics is the scientific study of choice and a study of economic principles allows us to achieve a more informed understanding of how we make our choices; whether these choices occur in our everyday life or in our work environment. Volume Two, Competition and Constraints, focuses on understanding how markets may operate; profit maximization; how real-world concerns may reduce efficiency; what corrective actions may be taken to prevent market failure and the implications of those actions. The goal is to provide a concise readable primer that extends the fundamentals of microeconomic theory to consider practical economic issues.