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Economic sectors are large groups of the economy, grouped according to their place in the production chain, by their kind of work (product or service) or ownership.
Based on place in the production chain[change | edit source]
Primary sector extracts natural materials and provides raw materials for secondary industry. Secondary sector processes raw materials or semi-finished goods into more valuable products. Tertiary sector is the provision of services. Quaternary sector is the activity related to the application, manipulation and transmission of information.