A well-publicized study could raise skepticism (and, potentially, legal complaints) by short people about your pay practices. The study, to be published in the Journal of Applied Psychology, found that, in general, the taller someone is, the more he or she is paid and the more promotion opportunities he or she has. The study calculated that each inch in height amounted to about $789 more a year in pay. Federal law bans discrimination due to a person's gender, race, age or religion. Some states also ban bias based on appearance.