Which of the following is an example of structural unemployment? A worker is replaced by a machine A worker loses their job due to a seasonal slowdown A worker quits to find a better job A factory closes during a recession

Structural unemployment occurs when there is a mismatch between the skills that workers in the economy can offer and the skills needed for available jobs. This type of unemployment is often brought about by technological changes, such as the introduction of new machinery or automation, which can render certain jobs or skills obsolete.<br /><br />Given the options provided:<br /><br />- **A worker is replaced by a machine**: This is an example of structural unemployment because the worker's skills are no longer needed due to technological advancements.<br /><br />- **A worker loses their job due to a seasonal slowdown**: This is an example of seasonal unemployment, not structural unemployment.<br /><br />- **A worker quits to find a better job**: This is an example of frictional unemployment, which occurs when workers are between jobs or entering the workforce for the first time.<br /><br />- **A factory closes during a recession**: This is an example of cyclical unemployment, which is related to the economic cycle and downturns.<br /><br />Therefore, the correct answer is:<br /><br />**A worker is replaced by a machine**