Abstract
The social work literature provides ample evidence of the use of the systems paradigm and concepts. However, system ideas serve primarily as a sensitizing tool, suggesting important environmental factors but not describing precisely the links between them. Social work's failure to take the next logical step, to develop systems models, constrains practitioners’ understanding and ability to intervene. The authors describe system dynamics modeling and its benefits. Educating students in system dynamics modeling can improve social work interventions in the complex situations faced by practitioners.