SUMMARY
World Systems Theory has been one approach used to explain the rise of the Mississippian social and political phenomenon. In this paper it is argued that a hierarchical model of core-periphery interaction does not explain the Cahokianphenomenon, because several crucial clements of such a model cannot be demonstrated to have existed within the Mississippian system. It is suggested that looking at Mississippian society as a differential core-peripheral system may have utility as a framework for including concepts such as gateway communities and interaction spheres previously used to describe the economic interactions between Cahokia and its neighbors.