Answer:
Benefit
Step-by-step explanation:
Benefit is extra payment that an employee collects from an employer. It is paid in addition to the normal compensation that a person receives and serves as a way to improve their welfare and to motivate them to perform better.
Usually benefits are not performance based payment but based on membership of an organisation. They are usually paid seperate from normal compensation.
In this case Alan's company pays him and his co-workers additional compensation as a "thank you" for good work. This is a benefit.