Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
Statutory or administrative ceilings, freezes, margin caps, or mandated below-cost pass-through rules for goods and services outside housing. This axis separates direct price ceilings from general product-market entry regulation.
Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Executive Order 11615 imposed a 90-day wage, price, and rent freeze, followed by four phases (II-IV) of controls with progressive liberalisation. Combined with closure of the gold window (ending Bretton Woods convertibility) and 10% import surcharge. Initial stabilisation produced a political-cycle benefit for Nixon's 1972 re-election. Post-freeze, inflation accelerated substantially (12.3% by 1974) and produced shortages in controlled goods, especially beef and oil products. Phase IV ended April 1974 with most controls expired. Canonical evidence for `price_controls_produce_shortages_and_quality_degradation`.
Per invariant 3, reforms are scored by what they did on each channel-separated axis, not by the party that enacted them. This fingerprint is how the policy-match engine finds historical analogues.
Explicit links are curated by the author. Inferred links are hypotheses in the library that test the same axes this policy moved — the framework's answer to "what does the data say about a policy like this?".
Ranked by axis-fingerprint overlap with this policy. Direction match bolded — those are the closest historical analogues. Shape of the match is what drives policy-outcome comparison, not the country or party label.