Foundations

Concepts, definitions and the mathematics behind valuation models — and notes on the Journal’s Foundations department itself.

The Foundations Department as a Dependency Map

Seventeen entries, eighteen dependencies, and the structures they define

Foundations

ontology

knowledge base

An engineering drawing of the Journal’s Foundations entries (Vol. 1 Nos. 1–2): which entry depends on which, and where each concept is defined, generated from the department’s knowledge base.

Oct 5, 2026

4 min

Property Variables Most Subject to Endogeneity

Foundations

endogeneity

regression

RCA

The property and market variables most likely to be endogenous in a residential sales model, grouped by cause, with the size and direction of each bias measured in a simulated market whose true price-setting is known; and what that means, under the Residual Constraint Approach, for adjustments, for hypothetical conditions, and for the residual.

Oct 4, 2026

48 min

Categories

The Foundations Department as a Dependency Map

Property Variables Most Subject to Endogeneity