Extensions
The Mengerian Stress Index: From Spec to Live Dashboard
Article 3 of this series proposed a quantifiable extension of Menger's saleability spectrum. This essay turns the proposal into a working framework: each of the five marketability proxies is defined precisely, the composite Mengerian Stress Index (MSI) is motivated, and the marketability half-life is operationalized as a regime-classification tool. The specific weights and calibration that drive the live MSI dashboard are deliberately not published; current readings live on the dashboard itself.