General government spending as share of GDP, excluding transfers already captured under fiscal.transfer_expansion to avoid double-counting.
Product-market regulation, entry barriers, licensing burdens, network-industry regulation, price controls.
Rule of law as institutional substrate — contract enforcement, judicial independence, equal treatment before the law. Upstream of most other axes.
Violent Crime Control and Law Enforcement Act (Pub. L. 103-322), signed 13 September 1994. Largest crime bill in US history — ~$30B authorisation; funded ~100,000 additional police officers under the COPS programme; expanded federal death penalty to ~60 offences; Title XI imposed 10-year ban on manufacture for civilian use of 19 named semi-automatic "assault weapons" and large-capacity magazines >10 rounds (sunset 13 September 2004). Violence Against Women Act included as Title IV.
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.