The use of world-systems theory to explain the spread of social complexity has become accepted practice by both historians and archaeologists. Gil Stein now offers the first rigorous test of world systems as a model in archaeology, arguing that the application of world-systems theory to noncapitalist, pre-fifteenth-century societies distorts our understanding of developmental change by overemphasizing the role of external over internal dynamics. In this new study, Stein proposes two complementary theoretical frameworks for the study of interregional interaction: a "distance-parity"...