In medicine, there are four levels of care: primary, secondary, tertiary, and quaternary. The levels of care refer to the complexity of the medical cases that healthcare providers treat and the ...

In modern economic models that break industry into five sectors – primary, secondary, tertiary, quaternary and quinary – industry work and workplaces fall into the secondary sector ...

All industry is part of a chain that starts with primary ... and secondary industry: the processing of these raw materials into usable products. Next in the chain come tertiary and quaternary ...

LAGUNA BEACH, CA-Deciding which markets are primary, secondary and tertiary can seem rather arbitrary, but defining those markets was part of the panel “Secondary vs. Tertiary Markets ...

They include the primary ... secondary sector companies. Tertiary sector companies are service providers. They may be retailers, financial service providers, or entertainment companies. Quaternary ...