||It has been suggested that this article be merged with Three-sector hypothesis. (Discuss)|
||This article does not have any sources. (March 2013)|
Based on place in the production chain[change | change 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.