Which of the following is not a type of unemployment

1. Analyze the question We are asked to find the option that is NOT a recognised type of unemployment in Economics.

2. Explain the concept Economists classify unemployment into these main types:

• Frictional unemployment: people temporarily between jobs, or new entrants searching for work.
• Structural unemployment: caused by changes in the structure of the economy, such as new technology or declining industries, which leave workers' skills mismatched with available jobs.
• Cyclical (demand-deficient) unemployment: caused by a downturn in the business cycle.
• Seasonal unemployment: caused by seasonal nature of work, such as farming or tourism.
• Technological unemployment: machines replace labour.
• Voluntary and involuntary unemployment: whether a person chooses not to work or cannot find work.
• Disguised unemployment (underemployment): more workers than a job needs.

3. Go through the options

• A. Factory unemployment: not a standard classification. Unemployment is classified by its cause (frictional, structural, cyclical, seasonal), not by the place of work.
• B. Structural unemployment: a recognised type.
• C. Mass unemployment: a term used in textbooks to describe widespread unemployment, often linked to cyclical or depression conditions (e.g. the 1930s). It is a description of scale, and it is sometimes listed in older Nigerian textbooks. It is weaker than "factory unemployment" as an invented category, though.
• D. Frictional unemployment: a recognised type.

4. Answer "Factory unemployment" is not a recognised type of unemployment.

5. Exam tip Remember the main types with the mnemonic "F-S-C-S-T": Frictional, Structural, Cyclical, Seasonal, Technological. If an option names a place or industry (like "factory") rather than a cause, it is probably the odd one out.