A skilled worker is any worker who has special skill, training, knowledge which they can then apply to their work. A skilled worker may have learned their skills through work experience, on-the-job training, an apprenticeship program or formal education. These skills often lead to better outcomes economically. The definition of a skilled worker has seen change throughout the 20th century, largely due to the industrial impact of the Great Depression and World War II. Further changes in globalisation have seen this definition shift further in Western countries, with many jobs moving from manufacturing based sectors to more advanced technical and service based roles. Examples of formal educated skilled labor include engineers, scientists, doctors and teachers, while examples of informal educated workers include crane operators, CDL truck drivers, machinists, drafters, plumbers, craftsmen, cooks and bookkeepers.

Labour economics, or labor economics, seeks to understand the functioning and dynamics of the markets for wage labour. Labour is a commodity that is supplied by labourers, usually in exchange for a wage paid by demanding firms. Because these labourers exist as parts of a social, institutional, or political system, labour economics must also account for social, cultural and political variables.