Often colleagues compare the work they do to someone else that gets paid more than them.

of motivation is at

play anytime employees say things like, 'John gets paid a lot more than me$,$ but doesn't do nearly as much work,$\text{'}$ or $\text{'}$I

get paid a lot less than Jane, but this place couldn't operate without me$!\text{'}$ In each of those situations, someone is

comparing their own effort$-$to$-$compensation ratio to someone else's and is losing motivation in the process.

equity theory

outcome$-$based theory

two$-$factor theory

need theory

expectancy theory