Are Hispanics the new largest ethnic minority group—key emphasis on “group”? According to published reports, early results from the U.S. Census Bureau suggest that the Hispanic population is ...

Psychological explanations of group genesis often require population heterogeneity in identity or other characteristics, whether deep (e.g., religion) or superficial (e.g., eye color). We used ...

Suppose $G$ is a finite commutative group scheme over a ring $R$. Using Hopf-algebraic techniques, S. U. Chase has shown that the group of principal homogeneous ...

The model in Box 1 shows that synchronization costs are usually higher for despotic than for democratic groups. However, if synchronization costs are asymmetric (that is, stopping too late costs less ...