Answer:
The emergent-norm perspective theory is letting people believe that the norms experienced by people is a crowd may be disparate and fluctuating.
Value-added theory, is a perspective within the functionalist tradition based on the idea that several conditions must be in place for collective behavior to occur.
Assembling perspective is another system for understanding collective behavior that credited individuals in crowds as rational beings. Unlike previous theories, this theory refocuses attention from collective behavior to collective action.
Step-by-step explanation:
Collective behavior is non-institutionalized activity in which several people voluntarily engage. There are three different forms of collective behavior: crowd, mass, and public. There are three main theories on collective behavior. The first, the emergent-norm perspective, emphasizes the importance of social norms in crowd behavior. The next, the value-added theory, is a functionalist perspective that states that several preconditions must be in place for collective behavior to occur. Finally the assembling perspective focuses on collective action rather than collective behavior, addressing the processes associated with crowd behavior and the life-cycle and various categories of gatherings.