Adam Smith's The Invisible Hand: The Feedback Structure of Markets. From Sterman JD Business Dynamics p170 Fig 5-26. A price-mediated resource allocation system..
From Jennifer Prah Ruger (2010) Health Capability Conceptualization and Operationalization Am J Public Health 100 p41-49 available from SSRN. Extends Insight 779 with Dahlgren and Whitehead's Sunrise Diagram of Social Determinants of Health added. See also wikipedia Capability Approach