Answer:
be paid within a range that likely overlaps with adjoining grades, so that an employee with experience can be paid as much as or more than a newer employee in a higher grade.
Explanation:
In simple words, experience matters the most in every job whether it is of labor or of some top executive administration. An experiences employee is always preferred in an organisation and every firm tries to retain such employees due to their efficiencies.
Therefore, even in case of jobs with same pay grades experienced employees are motivated to remain in organisation by offering them higher salaries.