The catfish effect is the effect that a strong competitor has in causing the weak to better themselves. Actions done to actively apply this effect (for example, by the human resource department) in an organization, are termed catfish management.
According to the legend a Norwegian fisherman kept the Catfish fresh by transporting them together with sardines. Catfish were motivated to chase sardines and survived longer.
Artificially encourage competition between teams and individuals within a company. It's claimed to improve the overall motivation and effectiveness.
By contrast, people with predictable income and future tend to be less motivated and eventually unhappy overall.