In developed economies, more than 50% of workers are typically employed in the Tertiary and Quaternary sectors.

The Tertiary sector involves services, such as healthcare, education, finance, retail, and entertainment, while the Quaternary sector includes knowledge-based activities like information technology, research and development, and information services. Developed economies often have a larger share of their workforce engaged in these sectors compared to the Primary and Secondary sectors, which encompass agriculture, mining, manufacturing, and construction.