What types of unemployment will still exist when the economy is at the natural rate of unemployment?

Question

Quizplus · Accepted Answer

When the economy is at the natural rate of unemployment, frictional and structural unemployment will still exist. Frictional unemployment occurs due to the time it takes for workers to search for and find new jobs, while structural unemployment occurs due to a mismatch between the skills of job seekers and the skills required by available jobs. Cyclical unemployment, which is caused by fluctuations in the business cycle, should not exist when the economy is at its natural rate of unemployment.

What Types of Unemployment Will Still Exist When the Economy