Regionalism in Africa has been pursued to foster economic growth and outgrowth. Despite the numerous efforts towards economic integration by the East African regional states, success has been limited. There is no comprehensive integration policy to cement the East African regional states. Although several authors have examined the influence of regionalism from various perspectives and regions, they have not addressed the EAC and the ASEAN in a comparative context. This knowledge gap motivated the current study whose specific objective was to assess the economic factors which influence development in the EAC and the ASEAN regional blocs. The study was guided by the Power Theories. It employed the concurrent mixed methods approach, incorporat...