African political history, indigenous political institutions and traditional governance, with particular focus on Asante political institutions, chieftaincy and traditional authority, and the social and political history of Northern Ghana. His research also examines colonialism and indigenous institutional transformation, migration and the African Diaspora, gender, religion, public administration, political accountability, community development, and African traditional medicine and indigenous healthcare systems, with broader interest in the relevance of African historical institutions and indigenous knowledge to contemporary governance, statecraft and social transformation.