There are blue-collar, white-collar, and and gold-collar employees. What do these terms mean?

I agree with Ragesh (Wikipedia) Blue - Labour class , hourly wages, White collar - Employee class (salaried), Gold Collar Doctors, Engineers, Lawyers Etc

Blue-collar

A "Blue-collar worker" is a member of the working class, who performs manual labor and earns an hourly wage.

White-collar

It means a salaried professional, typically referring to general office workers and management

Gold-collar

Highly skilled professionals who may be in high demand, such as engineers, doctors and lawyers.

Ref:

http://en.wikipedia.org/wiki/Collar_workers

Details with Subcategories

Blue-collar worker:A person, who performs manual labor and earns an hourly wage.

Subcategories:

·   Scarlet Collar: – Female shop workers.

·   Black Collar: – Miners (especially coal miners) and oil workers.

White-collar worker: – It means a salaried professional, typically referring to general office workers and management.

Subcategories:

·   Pink-collar worker – Secretarial, administrative, or other clerical workers.

·   Grey-collar – A skilled Technician, typically someone who is both white and blue collar, i.e., Information Technology workers. They are principally white collar, but perform blue collar tasks with some regularity.

·   Gold-collar worker – Highly skilled professionals, such as engineers, doctors and lawyers.

·   Red-collar worker – Former who work under sun light. Government workers of all types. Derived from compensation received from red ink budget.

Source: http://en.wikipedia.org/wiki/Collar_workers