From : HR Management
To : All Regular Staff
Date : January 3rd, 2023
Effective January 10th, thirty new employees will begin working on our production plant on an hourly-rate basis. This is an experiment to determine whether hourly employment would give better results for all aspects of our enterprise. The new employees know that they are part of an experiment. Management encourages regular staff to discuss the program among themselves and with the new employees. After six months, we will assess the program to learn any lessons it may have for us. Meanwhile, we welcome staff comment.
What is the main topic of the passage?