What is "mesosociology"

Mesosociology is the study of intermediate (meso) social forces and stratification such as income, age, gender, race, ethnicity, organizations and geographically circumscribed communities.

Mesosociology lies between analysis of large-scale macro forces such as the economy or human societies (which is a domain of macrosociology), and everyday human social interactions on a small scale (a domain of microsociology).