Certain companies require their managers to rank workers in the groups they supervise from best to worst, giving each worker a unique ranking based on job performance.
Evidence
Certain companies require their managers to rank workers in the groups they supervise from best to worst, giving each worker a unique ranking based on job performance.
The top 10 percent of the workers in each group are rewarded and the bottom 10 percent are penalized or fired.
Good workers could receive low ranking merely because they belong to groups of exceptionally good workers.
Furthermore, managers often give the highest rankings to workers who share the manager's interest outside of work.
Conclusion
A system that rewards the top 10 percent and punishes the bottom 10 percent of workers within each group is unfair.