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The quaternary sector of the economy is based upon the economic activity that is associated with either the intellectual or knowledge-based economy. [1] 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 ...
In the 20th century, economists began to suggest that traditional tertiary services could be further distinguished from "quaternary" and quinary service sectors. Economic activity in the hypothetical quaternary sector comprises information- and knowledge-based services, while quinary services include industries related to human services and ...
The rise of the post-industrial economy in which an increasing proportion of economic activity is not directly related to physical goods has led some economists to expand the model by adding a fourth quaternary or fifth quinary sectors, while others have ceased to use the model.
Among developed countries, it is an important source of well-paying jobs for the middle class (e.g., engineering) to facilitate greater social mobility for successive generations on the economy. Currently, an estimated 20% of the labor force in the United States is involved in the secondary industry. [2]
Economic activities can be classified in a variety of ways. At the top level, they are often classified according to the three-sector theory into sectors: primary (extraction and agriculture), secondary (manufacturing), and tertiary (services). Some authors add quaternary (knowledge) or even quinary (culture and research) sectors. Over time ...
U.S. manufacturing activity contracted further in December, with a measure of factory output dropping to the lowest level in more than 4-1/2 years amid worries that higher tariffs would raise ...
Primary sector of the economy (the raw materials industry) Secondary sector of the economy (manufacturing and construction) Tertiary sector of the economy (the "service industry") Quaternary sector of the economy (information services) Quinary sector of the economy (humanitarian services)
(Reuters) -U.S. economic activity was little changed from September through early October and firms saw a slight uptick in hiring, continuing recent trends that have reinforced expectations the ...