[3] His research interests were in tribal organization in the Dinaric region, ethnic history and relations between the Slavs and indigenous population in the Balkan, and religion among the Serbs and Montenegrins.
He worked as a teacher in Croatia and Bosnia, while during the eve of World War II joined the partisan movement and Yugoslav communist party.
[8] In his work Ideological and Theoretical Grounds for the Development of Our Ethnographic Museum (1953) criticized the inter-war museological practice, as well introduced a new name for the discipline, ethnography instead of ethnology.
Such political hegemony influenced the museology which presented integralist Yugoslav and Serbian ethnocentrism, while underestimated the development of minority groups, as well supported methodological formalism.
He considered patriarchy as the historical next stage from matriarchy, and that the South Slavs had a matriarchal origin, contrary to the Yugoslav historiography consideration that during the Slavic migration there was transition in the Balkan, yet had patrilineal-patrilocal family and military-democratic social system.
[16] Kulišić considered zadruga (cooperative) a transitory form, like Vlach katuns and fraternity, that they lack patriarchal structure, and showed an archaic Balkan historical longevity and adjustment to the new socio-economical formations (like feudalism).