Abstract
Although interpersonal, group processes and inter-group relationships are dynamic phenomena, researchers have studied these phenomena in a static manner. This article provides an overview of system dynamic modeling to bring greater attention to the importance of dynamic theoretical formulations and presents important concepts and tools that can facilitate movement in this direction. Important concepts for theory development are delineated, and various reasons why the field has a penchant for static theoretical formulations are explored. A set of tools and concepts from system dynamics is presented to guide dynamic thinking and future theory building.