This chapter focuses on group dynamics. We review group dynamics in five domains and examine group dynamics within the context of group development. There are many theories about the development of group dynamics, but fundamental to all of them is the notion of groups as social systems. A system is composed of elements in interaction. When group members interact with each other, they form a soc...

Identifying factors that affect human decision making and quantifying their influence remain essential and challenging tasks for the design and implementation of social and technological communication systems. We report results of a behavioral experiment involving decision making in the face of an impending natural disaster. In a controlled laboratory setting, we characterize individual and gro...

Group formation is a quite ubiquitous phenomenon across different animal species, whose individuals cluster together forming communities of diverse size. Previous investigations suggest that, in general, this phenomenon might have similar underlying reasons across the interested species, despite genetic and behavioral differences. For instance improving the individual safety (e.g. from predator...