Quaternary sector of the economy

The quaternary sector of the economy is based upon the economic activity that is associated with either the intellectual or knowledge-based economy. This consists of information technology; media; research and development; information-based services, such as information-generation and information-sharing; and knowledge-based services such as consultation, entertainment, broadcasting, mass media, telecommunication, education, information technology, financial planning, blogging, and designing.

Source: Wikipedia — Quaternary sector of the economy (CC BY-SA 4.0)