Social movement theory is an interdisciplinary study within the social sciences that generally seeks to explain why social mobilization occurs, the forms under which it manifests, as well as potential social, cultural, political, and economic consequences, such as the creation and functioning of social movements.
Classical approaches The classical approaches emerged at the turn of the century. These approaches have in common that they rely on the same causal mechanism. The sources of social movements are structural strains. These are structural weaknesses in society that put individuals under a certain subjective psychological pressure, such as unemployment, rapid industrialization or urbanization. When the psychological disturbance reaches a certain threshold, this tension will produce a disposition to participate in unconventional means of political participation, such as protesting. Additionally, these approaches have in common that they view participation in contentious politics as unconventional and irrational, because the protests are the result of an emotional and frustrated reaction to grievances rather than a rational attempt to improve their situation. These psychologically-based theories have largely been rejected by present-day sociologists and political scientists, although many still make a case for the importance (although not centrality) of emotions. See the work of Gustav LeBon, Herbert Blumer, William Kornhauser, and Neil Smelser.
Deindividuation model
Sociologists during the early and middle-1900s thought that movements were random occurrences of individuals who were trying to emotionally react to situations outside their control. Leon Festinger was an American social psychologist who coined the term deindividuation. Festinger and colleagues suggested that experiencing deindividuation, especially within a group setting, diminishes typical inhibitions on behavior, leading individuals to engage in actions they might otherwise refrain from, as they feel less directly responsible for their conduct. An important writer in this area of research was Gustave LeBon. In his book The Crowd, he studied the collective behavior of crowds. What he concluded was that once an individual submerges in a crowd, his behavior becomes primitive and irrational and he is therefore capable of spontaneous violence. This transformation happens under certain conditions. Once individuals submerge themselves in a crowd, they gain a sense of anonymity and this causes them to believe that they cannot be held accountable for their behavior within the crowd. This is combined with a sense of invisibility by being part of a crowd. Under these conditions, critical reasoning is impossible and an unconscious personality emerges: a personality which is dominated by destructive instincts and primitive beliefs. This theory has been picked up and further developed by other theorists like Herbert Blumer and Neil Smelser.
Mass society theory Mass society theory emerged in the wake of the fascist and communist movements in the 1930s and 1940s and can be seen as an attempt to explain the rise of extremism abroad. One prime example of extremism abroad is the rise of fascism in Europe during the twentieth century. Characterized by totalitarian rule, nationalist fervor, and racial discrimination, fascist regimes such as those led by Mussolini in Italy and Hitler in Germany imposed authoritarian control and propagated aggressive expansionism. The central claim of mass society theory is that socially isolated people are more vulnerable to extremism. An important underpinning of this theory is Émile Durkheim's analysis of modern society and the rise of individualism. Durkheim stated that the emergence of the industrial society caused two problems:
Anomie: There were insufficient ways to regulate behavior due to the increasing size and complexity of the modern society. Egoism: The excessive individuation of people due to the weakening of local communities. These problems signify a weakened restraining social network to control the behavior of individuals. According to Durkheim, this will lead to dysfunctional behavior, such as suicide. Arthur Kornhauser applied this theory to social movements in his book The Politics of Mass Society. He stated that in a mass society, anomie and egoism cause small local groups and networks to decline. What is left after this are powerful elites, massive bureaucracies, and isolated individuals. In this society, intermediate buffers between the elite and the non-elite erode and normal channels for non-elites to influence elites become ineffective. This makes non-elites feel more alienated, and therefore more susceptible to extremism.
Relative deprivation
People are driven into movements out of a sense of deprivation or inequality, particularly (1) in relation to others or (2) in relation to their expectations. In the first view, participants see others who have more power, economic resources, or status, and thus try to acquire these same things for themselves. In the second view, people are most likely to rebel when a consistently improving situation (especially an improving economy) stops and makes a turn for the worse. At this point, people will join movements because their expectations will have outgrown their actual material situation (also called the "J-Curve theory"). See the work of James Davies, Ted Gurr, and Denton Morrison.
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