This conceptual framework is an analytical tool with various variations and contexts. It can be used in multiple fields where an overall picture is required. It is used to distinguish concepts and organize ideas. Strong conceptual frameworks capture something real in an easy-to-remember and apply manner. Economists use the "supply" and "demand" conceptual frameworks to distinguish between the firm, consumer behavior, and incentive systems. Like many conceptual frameworks, supply and demand can be represented visually or graphically. Principal-agent theory serves as a conceptual framework in both political science and economics. The politics-administration dichotomy has long been used as a conceptual framework in public administration. All three of these examples are of a macro-level conceptual framework.