Loop polarity, loop dominance, and the concept of dominant polarity (1984)

Founded in the mid-1950s, the field of system dynamics has intellectual roots reaching much further into the past. This section seeks to publish material from that past that can contribute to current theory and practice. It welcomes previously unpublished but deserving system dynamics work, classics from past system dynamics literature that should receive renewed attention, and previously published articles from other disciplines of particular significance to current system dynamicists. Contributions emphasizing the philosophy and theory of model building, validation, implementation, education, and generic structures are particularly encouraged. Submissions may range in length from notes to main articles but may be edited. Send material, with a brief introduction placing it in historical and current contexts, to John D. Sterman, System Dynamics Group, MIT E40–294, Cambridge, MA 02139, U.S.A.