Whitepaper 3 — The Institutional Honesty Coefficient (IDI)

This whitepaper introduces the Institutional Honesty Coefficient (IDI), the third foundational layer of Fiscal Geometry (FG). Where Whitepaper 1 defines the geometric language of institutions and Whitepaper 2 formalizes the computational mechanics of institutional tension, this document establishes the integrity layer: a structural measure of alignment between what institutions declare (ITI) and what their lived fiscal geometry produces (gITI).

The IDI is defined as the normalized distance between rule-side tension and movement-side tension, yielding a value in 0,10,10,1. Low IDI indicates high institutional coherence; moderate IDI reflects frictional distortion; high IDI signals structural divergence between rules and flows.

By transforming the classical law–life gap into a measurable coefficient, the whitepaper reframes institutional analysis from narrative critique to structural auditing. The IDI provides a unified, cross-domain metric for taxation, education, migration, and intergenerational capital—allowing institutions to be evaluated on whether their fiscal geometry behaves as written.