Quaternary sector of the economy 第四产业
（重定向自Quaternary sector）
![Colin Clark's sector model of an economy undergoing technological change. In later stages, the quaternary sector of the economy grows – shown in red.](/Images/godic/202502/05/Clark's_Sector_Model4418.png")
![基础研发科学家](/Images/godic/202502/05/InvestigadoresUR4418.JPG")
![军队](/Images/godic/202502/05/Wuhan_german_divs4419.jpg")
The quaternary sector of the economy is a way to describe a knowledge-based part of the economy - which typically includes services such as information technology, information-generation and -sharing, media, and research and development, as well as knowledge-based services like consultation, education, financial planning, blogging, and designing.