This chapter discusses individual differences in personality, attitudes, and ethical behavior. It defines personality and the "Big Five" personality factors (extraversion, agreeableness, conscientiousness, neuroticism, and openness). Only 2-12% of behavior is determined by personality alone. Attitudes consist of affective, cognitive, and behavioral components and best predict behaviors that are specific and recent. Job satisfaction and organizational commitment are influenced by work factors and experiences. Management ethics can be immoral, moral, or amoral and shaping an ethical culture requires selecting ethical employees and reinforcing ethics through training and evaluations.