This investigation explores inter-professional conflict for jurisdictional control and market share advantage. A System Dynamics model, informed by theory of inter-professional competition, was created, focusing on a profession classified as “major” and competitor profession classified as “minor”. Medicine was chosen as the major player, since efforts to manage healthcare expenditures have fostered attitudes that support substituting lower cost alternatives. Chiropractic was chosen as the competitor, due to its independent status, and its prominence in the CAM field. The jurisdiction of interest was neck and/or back pain. It was posited that an increase in academic abstract knowledge or an increase in professional association membership would benefit the minor player. In addition, it was hypothesized that an increase in supply of the dominant profession would adversely affect chiropractic, as would pressure on medicine from external sources such as health management. Simulation results suggested that increasing the academic abstract knowledge of the minor profession had only a minimal impact, after an extended delay. No differences were seen by increasing association membership. Negative effects on the minor profession’s market share were observed when supply of the dominant player was increased and when external pressure was intensified. In general, simulation results favored medicine’s monopoly.