It is reasonable to ask what good diversity does us. Diversity of expertise confers benefits that are obviousyou would not think of building a new car without engineers, designers, and quality-control expertsbut what about social diversity? What good comes from diversity of race, ethnicity, gender, and sexual orientation? Research has shown that social diversity in a group can cause discomfort, rougher interactions, a lack of trust, greater perceived interpersonal conflict, lower communication, less cohesion, more concern about disrespect, and other problems