According to equity theory, there will be no change in employees' attitudes or behavior when which of the following is true?
1) Employees perceive that their inputs and outcomes are equal to those of their referent
2) Employees perceive that their inputs and outcomes are greater than those of their referent
3) Employees perceive that their inputs and outcomes are less than those of their referent
4) Employees perceive that their inputs and outcomes are not related to those of their referent
