Trade policy openness — tariffs, non-tariff barriers, FTAs, industrial protection.
Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Bilateral US-Japan Structural Impediments Initiative (SII) final report 28 Jun 1990 committed Japan to reform six structural barriers: savings-investment patterns (¥430 trillion public-works commitment over 10 years), land-use reform, distribution (Large-Scale Retail Store Law amendment), exclusionary business practices, keiretsu relationships, and pricing mechanisms. Real implementation mixed; Large-Scale Retail Store Law amendments 1990 did ease big-box retail entry.
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.