introduction
Definitions
Before examining mob violence, a number of terms need to be defined and differentiated: crowd, mob, riot, mob violence, group violence, and crowd behavior. According to a dictionary of psychology (Chaplin, 1985), a crowd is a collection of people who share a common interest and whose emotions may be easily aroused; a mob is a crowd acting under strong emotional conditions that often lead to violence or illegal acts. The primary distinction between a crowd and a mob is the level of shared emotion, as well as some forms of (destructive) expressions of emotion. A riot is an instance of mob violence, with the destruction of property or looting, or violence against people. A riot has been described as an unplanned or unorganized expression of anger or rage, without a focused goal (Levin & Mehlinger, 1975). However, riots can and often do serve shared motives of the participants.
Milgram and Toch (1969) suggested that mob violence is primarily expressive or serves a need for immediate gratification, whereas social movements are organized efforts to change social conditions (which may be the background activators of mob violence). However, we contend that crowd behavior and mob violence can also be vehicles of social movements.
We use the term group violence to refer to organized violence by the state or by a dominant group in society against subgroups that are defined as enemies. Examples of group violence include genocide, mass killing, and the systematic use of torture (Staub, 1989).