Before revision:  For subgroup-level balance, we derive measures of cohesiveness ( internal solidarity) and divisiveness ( external antagonism) to capture balance in subgroups using the most fitting partition of nodes into two groups.
After revision:  For subgroup-level balance, we derive measures of cohesiveness ( internal solidarity) and divisiveness ( external antagonism) to capture balance within and among subgroups of the network using the most fitting partition of nodes into two groups.