Final answer:
Tony's offer of a $100 bonus to his employees for early project completion is an example of positive reinforcement, which provides a motivating extrinsic reward to enhance productivity.
Step-by-step explanation:
Tony offering his employees a $100 bonus for each day that the department's project is completed ahead of schedule is an example of positive reinforcement. In operant conditioning, positive reinforcement is the addition of a reinforcing stimulus following a behavior that makes it more likely that the behavior will occur again in the future. The bonus serves as a motivator, an extrinsic reward, for the employees to increase productivity and ensure timely completion of the project. This is not an example of extinction, which is the decrease in the conditioned response, nor is it an example of valence, which refers to the intrinsic attractiveness or aversiveness of an event, behavior, or specific consequence.