Final answer:
A teenager unable to find work due to minimum wage laws is facing structural unemployment, which arises from mismatches in the labor market.
Step-by-step explanation:
A teenager not being able to find a job because the legal minimum wage is higher than the wage that firms are willing to offer is an example of structural unemployment. This kind of unemployment occurs when there is a disconnect between the skills that workers have and the skills needed for the available jobs, or due to inflexibilities in the labor market such as high minimum wages that prevent firms from hiring at lower wages. This can also happen because of technological changes, geographic factors, or sudden shifts in the market demand.