I have uncovered a transcript, whereby we now know that Santa Claus had a major in Psychology.
General Psychology (Develop understanding of who people are and what they want)
Abnormal Psychology (To figure out who's been "naughty 'n nice")
Child Development (No explanation needed)
Social Psychology (Social influence on consumer behavior)
Statistics (Analysis of productivity of the elves and their job satisfaction)
Psychology of Personality (Knowledge of the perfect gift for each person)
Behavior Modification (Rewards do influence behavior; and to keep the reindeer in line)
Psychological Testing (Objective method of matching the right elf to the right job)
Physiological Psychology (Brain body connection for all the meals and goodies at Christmas time)
Being Human and Addicted (Study of the powerful behaviors related to shopping the Friday after Thanksgiving; OR beginning the shopping list back in February for the next Christmas; OR leaving up the outdoor lights until May; OR watching all the Christmas videos, over and over; OR dealing with withdrawal after the season is over; OR ... well you get the picture)
Way to go Santa!