Which of the following is NOT a type of unemployment?

In economics, various types of unemployment are identified, including frictional, structural, and cyclical unemployment. Frictional unemployment occurs when individuals are temporarily unemployed while transitioning between jobs or entering the labor market for the first time. Structural unemployment happens when there is a mismatch between workers’ skills and the demands of the labor market, often due to technological changes or shifts in the economy.

Cyclical unemployment is influenced by the economic cycle, rising during recessions when demand for goods and services decreases, and businesses may lay off workers.

In contrast, "planned" unemployment isn't recognized as a formal type of unemployment in economic theory. It does not accurately describe a condition that arises from normal economic activities or labor market dynamics. Therefore, it is the term that does not fit within the established classifications of unemployment in economics, making it the correct choice in this scenario.