An economic system is a system of production, resource allocation, and distribution of goods and services within a society or a given geographic area. It includes the combination of the various institutions, agencies, entities, decision-making processes, and patterns of consumption that comprise the economic structure of a given community. As such, an economic system is a type of social system. The mode of production is a related concept. All economic systems have three basic questions to ask: what to produce, how to produce and in what quantities, and who receives the output of production.
The study of economic systems includes how these various agencies and institutions are linked to one another, how information flows between them, and the social relations within the system (including property rights and the structure of management).
The analysis of economic systems traditionally focused on the dichotomies and comparisons between market economies and planned economies, and on the distinctions between capitalism and socialism. Subsequently, the categorization of economic systems expanded to include other topics and models that do not conform to the traditional dichotomy. Today the dominant form of economic organization at the world level is based on market-oriented mixed economies.
Economic systems is the category in the Journal of Economic Literature classification codes that includes the study of such systems. One field that cuts across them is comparative economic systems, which include the following subcategories of different systems: