Final answer:
The closure of auto plants in Michigan has resulted in downward structural mobility for workers due to outsourcing and the recent recession.
Step-by-step explanation:
The closure of auto plants in Michigan has resulted in a wave of downward structural mobility for the vast majority of workers. Structural mobility refers to changes in social class ladder that affect a whole group of people due to societal changes. In this case, the outsourcing of jobs and the recent recession have led to high unemployment rates and economic setbacks for many workers, resulting in a decrease in their social class.