Answer:
formal sociology, the study of microinteractions, network theory.
Step-by-step explanation:
Georg Simmel was a renowned German social scientist who contributed to sociology at its early stage of development by formulating innovative social theories and paradigms.
Concerning the sociological perspective, Simmel was the founder of the so-called "formal sociology" or "sociology of forms" and differentiated himself in the field of the study of social phenomena because of his interest in microsociological analysis, which refers to the investigation of society. , but from the actions and reactions of social actors in interaction. In addition, he pioneered formal sociology, the study of microinteractions and network theory.