Who analyzed how social interactions vary as a function of the size of the social group?

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Georg Simmel analyzed how social interactions vary as a function of the size of the social group. He argued that as group size increases, the patterns of interaction within the group change and become more formalized, with individuals becoming more concerned with their social roles and less concerned with their personal relationships with others in the group. This is known as the "formalization effect" of group size, and it has been studied extensively in social psychology and sociology.

Who Analyzed How Social Interactions Vary as a Function of the Size