Diversity can emhance group performance. One study of gender diversity among U.S. workers found that men and wonman in gender-balanced group had higher job satisfaction than those in homogeneous groups.
Ethnic diversity has characterized many industrial work groups in the United States since the 1800s. This was especially true during the early years of the 1900s, when waves of immigrant workers arrived from Germany, Yugoslavia, Italy, Poland, Scotland, the Scandinavian countries, and many other nations. Organizations were challenged to blend these culturally and linguistically diverse peoples into effective work groups