Our lab explores how power and competition create biases against out-groups; we work on research that includes a variety of levels: neural patterns, interpersonal interactions, societal stereotypes, and cultural comparisons. For example, we have studied how stereotyping, prejudice, and discrimination are encouraged or discouraged by social relationships, such as cooperation, competition, and status. People easily categorize others, especially based on race, gender, and age. Going beyond categorical prejudices, to learn about the individual person, requires motivation. Social relationships supply one form of motivation to individuate, and our work shows that being on the same team or depending on another person helps people go beyond stereotypes. Conversely, people in power are less motivated to go beyond their stereotypes. Our laboratory examines how a variety of relationships affect people forming impressions of others. Society's cultural stereotypes and prejudice also depend on relationships of power and interdependence. Group status and competition affect how groups are disliked and disrespected. From survey evidence, we analyze the content of group stereotypes based on race, gender, age, disability and income, the micro building blocks of institutional inequality.