Economics of Workplace Management:

If an employee is good at his/her job,she/she will be promoted.But then, eventually,he/she will reach a position where his/her contribution is not valuable enough to receive another promotion:the employee will settle at a job where he/she is not very good at! This simple logic is also known as "Peter Principle". According to the Peter Principle, what is the overall point and the reading's main findings?