Backward bending supply curve of Labour It’s easy to think that monetary rewards could be a strong motivation. However, experts like Frederick Herzberg and Edward Deci (Human Motivation Psychologist at University of Rochester) suggest that they only work in instances where lots of care is taken. More often than not, they can have the opposite outcome because of the “Overjustification effect” – which is to say that if the rewards stop, then employees consciously or subconsciou