Lewis Coser

Coser's best-known work is "The Functions of Social Conflict," published in 1956, in which he argued that conflict can strengthen group solidarity and contribute to social stability rather than purely disrupting it. He drew heavily on Georg Simmel's earlier writings on conflict to develop this framework.

Whereas Marx focused on class conflict as an engine of revolutionary transformation, Coser argued that conflict within existing social structures can serve integrative functions such as reinforcing group boundaries, redefining norms, and increasing internal cohesion. His approach was rooted in Simmel's formal sociology rather than in Marxist political economy.

Coser held academic positions at Brandeis University from the 1950s through the 1970s and later at the State University of New York at Stony Brook. Born in Berlin in 1913, he emigrated to the United States and became a prominent figure in American academic sociology, serving as president of the American Sociological Association in 1975.

Coser was one of the most important American interpreters and extenders of Georg Simmel's work, particularly Simmel's ideas about conflict as a form of social interaction. He also edited and translated Simmel's writings for English-language audiences, helping to establish Simmel as a central figure in American sociological theory.